I have changed oil in a vehicle, but it’s been a lot of years. My dad, before he would take us to get a learner’s permit, required that we rotate the tires on one of the family vehicles (assuring that we could change a tire), learn how to change the oil and check / top off other fluids. I don’t have the physical strength to change a tire anymore, but the knowledge is still there. When baby sis was in college, her boyfriend’s radiator sprung a biiiiiig leak on his old hoopty. She and I, after asking Dad and Big Bro a few questions, went to the junkyard, pulled a radiator from the same model, took it back to her duplex and put it into the car. Her boyfriend and his buddy cooked dinner while watching football. 
While I wore heels, mostly when I worked in sales, I hated them. I’ve had metal body parts since I was sixteen and they were murder on my feet, knees and back. I got rid of the last pair at least a decade ago. While I don’t wear much makeup on a daily basis (lipstick and eyebrow pencil), I do own it and apply it when I have to dress like a grown up. As far as nails go, I play musical instruments, cook and do crafty stuff involving sharp and / or abrasive instruments and some harsh chemicals. If the nails are clean and trimmed, that’s good.
Also, conga-rats on getting your first shot. I’ll be waiting for months for mine at the rate things are going.