Take lots of pictures. Pictures of your current friends, your favorite places, where you live. Pictures of yourself in your favorite outfits ( this will be quite funny in time). As you get older you forget what these things were like. Pictures bring all the memories back.
Keep a journal, or some sort of record of what is important to you. For me it is in the form of letters I had written, but never sent. I love reading those now. Gives me a great perspective of how things that seemed so traumatic at the time become little footnotes in the grand scheme of life.
Make some time to develop some new hobbies. When you are the busiest and most stressed is when you think you have no time for idle pleasure. But that is the time you need some idle pleasure the most.
Learn to enjoy doing things alone. I always loved to go to the race track. But it was not often I could find friends who could go when I could, or even friends who wanted to go. When I was 37 I went to the track by myself for the first time. I loved it. Met a whole new group of people outside my normal world. I now am co-owner of several thoroughbreds, and recently got to witness my first foal being born. I wish I had done this sooner.
Try everything once. Well within reason. If you hate guns, but get invited to go to a shooting range, just give it a try. Even if you hate it, you will have a great story to tell. Makes you much more interesting.
Picture who you want to be in 5 years. Picture it in your mind often, get a real sense for what that will feel like. Then start to do the things that will help you become that person. For many, 24 can be a real make or break time. You are just beginning to feel the real pressures adult life brings. How you learn to deal with them can make a big difference. An attitude of hope and gratefulness vs despair and hopelessness makes such a difference.
I think you are on the right track just the fact that you thought to ask this question. Which leads me to my final thought. Ask for lots of advice, as you have done in this OP. Ask the people who you would like to be like, what they think is important. Even ask those you don’t want to end up like, learn where they went wrong. You will probably see some very strong patterns.
Remember you are the sole architect of your life. Lots of things you didn’t plan for or expect will come your way. That is part of life. How you deal with those things will determine your ultimate result.