Am I an INTJ or ISTJ type of personality?

Maybe this is more for some sort of specialized MBTI forum or reddit, but I tried there (I’m copying the text from it) and didn’t get an answer, so maybe someone here knows.

I’ve been doing MBTI tests for a few years from time to time and I seem to always get INTJ, though I got ISTJ once. I tried looking at comparisons to try to solve it on my own, but all Quora answers on INTJ VS ISTJ are filled with a dozens of long dry theory answers about Ni, Te and so on with zero actual real world examples.

There’s also some seemingly paradoxal descriptions, like how INTJ overanalyze everything and constantly feed with new information, but at the same time they make decisions on intuition without grounding it on facts…, so how can they be 1. obsessed with taking in information all the time, but at the same time 2. be essentially guessers that don’t have information? Where does that information go then? That sounds like studying the results of football games and chances of teams winning and then instead going to bet on dog races about which you have no idea, it makes zero sense.

Also I don’t understand the difference between creative and practical, if you think of a new practical solution, like a lifehack to improve your work efficiency at your job, isn’t that literally you being creative, as opposed to not thinking of anything and doing things the old slow way?

And lastly before I start to describe myself, if I understood correctly, both INTJ and ISTJ don’t like challenges and surprises while they are working, they like to prepare for every possibility and so on, but in the long term INTJ’s like change and ISTJ’s don’t?

As for me, here’s some facts, I’m a 25M transport logistic btw:

I constantly think about hypothetical scenarios, though mostly relatively realistic ones, I sometimes think about conversations in advance and think what the optimal sentence is to get a desired answer from the person

I am interested in both real history, population statistics, GDP,etc. and hypothesising about alternate history and future political scenarios, how wars could play out,etc.

I often think about what I’d do if I was the president in relation to dozens of topics

I hyperfocus on things that interest me, for example I can watch a car documentary for hours with no sense of time, but a simple chore like cleaning a single dish physically drains me

I have a single best friend from middle school who I’m kinda close with and I don’t really have any other close friends. I’m slightly uncomfortable around extroverts and their jokes and can take comments about me a bit seriously, even if I realize they aren’t being serious. I’m content with minimal contact with colleagues and family and I like it when they think positive of me, but I don’t change things about me just for them to like me

I enjoy the path of least resistence and most efficiency, if I can go with my car to the workplace in 2 minutes and save time for home, I don’t understand why people would walk for 15 minutes, even if it’s just a kilometer away, and waste over 20, 30 additional minutes daily

I usually know exactly what I want to buy. I can go to the largest most interesting market in the world, but if I want to buy a single soda, I will just get the soda, go to the cashier and I’m done

Sometimes I like to go to the other part of the city even to just get 2 large soda’s that I can get in a street mart that’s 2 houses away, I guess for the sake of exploring and driving,idk

I like premium things that offer the most features, but I don’t like to brag, for example I would pay more money for a premium computer for my enjoyment, but I wouldn’t show it off

My two main goals in life are to move to Greece, with which I’m obsessed since childhood and to acquire investments through life to have a nice stable income once I’m old

I have aphantasia that limits my physical ability to visualize, but if it didn’t, I’d spend hours designing cities in Cities skylines and modeling realistic looking 3d models in Blender, which I both kinda do from time to time, but not that well because of aphantasia

I love cars, learning about them, about various engines,etc. and I check car ads daily and hypothesize about which car I’d buy, even though I have no money for such a thing and I even get annoyed if I don’t find a car that fits my taste, that has all the options,etc.

Other than my native Serbian I speak English, Russian at an upper medium level, about A2 level German and certified A1 level Hungarian, as well as very, very basic Greek and I love the feeling when I can have a conversation in a foreign language that I just learned

Other than local popular music, I also listen to more niche stuff like Israeli music, Russian marches, Turkish pop, not because I want to stand out, but because I enjoy it and I don’t share it with others

I can be hypocritical in defending my stances, for example when defending political stances

I often think about topics like Basic income and it’s limitations in small economy countries, topics like the future of factory and transport workers due to automatisation,etc.

I wish that I could experience lucid dreams on demand to ask my subconscious about various ideas, to visualize my ideal future, my ideal house,etc.

I dislike being around cats, because I consider them way too unpredictable and “dangerous” in the sense that they can scratch me, but I love being around dogs who I consider much more predictable and friendly

I don’t give much significance to my love life, I don’t want to die alone, but it’s not a priority

At a workplace I do everything that is required, but I dislike having people check on me and having to do everything in a particular way if there’s a better way. I also like working at my own pace and when I can go to the toilete or a pause whenever I want to without asking for permission, while of course finishing the work by the end of the shift.

I enjoy somewhat of a change from time to time, for example I get excited about trips way in advance and maybe more relevant, I was happy when I was starting to work alone instead of working with the colleague who was training me for a few months, since that meant that I could have more independency, that I could prioritize tasks I want, that I won’t have to tell him wherever I am going,etc., then after working alone for a few months and after getting kinda bored, I was happy when he came back for a few days, since he could help me out and it was a fresh change again.

Even though I’m a transport logistic by education and can work various jobs with high accountability in big transport companies, I prefer to work less paid jobs, but where the stress is smaller and where there’s more free time overall

Any sort of classification system for real-world phenomena will have some edge cases where it doesn’t work well, all the more so when the phenomena are as complicated as living things or minds. The Briggs-Meyer test is an attempt to classify all personalities in a low-resolution four-dimensional system. Of course there’s more to it than that.

There’s no scientific evidence that the Myers-Briggs test is a valid or useful instrument. One study found that up 50% of test takers scored differently when retaking the test just five weeks later.

There are problems with the history and use of this method of personality testing.
Myers–Briggs Type Indicator - Wikipedia
" Most of the research supporting the MBTI’s validity has been produced by the Center for Applications of Psychological Type, an organization run by the Myers-Briggs Foundation, and published in the center’s own journal, the Journal of Psychological Type , raising questions of independence, bias, and conflict of interest.)

Though the MBTI resembles some psychological theories, it has been criticized as pseudoscience and is not widely endorsed by academic researchers in the field.The indicator exhibits significant scientific psychometric) deficiencies, notably including:

  • poor validity (i.e. not measuring what it purports to measure, not having predictive power or not having items that can be generalized)
  • poor reliability (giving different results for the same person on different occasions)
  • measuring categories that are not independent (some dichotomous traits have been noted to correlate with each other)
  • not being comprehensive (due to missing neuroticism"

There are other problems with the use of this test, and with the validity of any research supporting it.
Myers–Briggs Type Indicator - Wikipedia

This test is trying to split people into two groups along various dimensions, but most human characteristics actually fall on a curve - meaning the majority are somewhere in the middle rather than at one extreme or the other. For this reason it’s not surprising you can get different results taking the test at different times; it probably means you are scoring close to the middle on the N vs S dimension.

It’s not like people actually fall neatly into 16 - or any number - of types in the real world. In reality there’s infinite variation, and anywhere you choose to divide personalities will be somewhat arbitrary.

My therapist daughter who has a recent masters degree tells me that the only currently accepted personality test appears to be the “Big Five” or OCEAN, which posits five axes:

Openness
Conscientiousness
Extraversion
Agreeableness
Neuroticism

lots of info out there and do-it-yourself online tests as well.

But if you really want to go down a personality-test rabbit hole, try the Enneagram.