To be honest, I'd just pick something. I was in a similar position when I just turned 18. No clue what to do. So I just picked the first full time job I could find. It was factory work. Stayed there and then decided I was working too hard for too little. So I decided to go back to school for kinesiology. Got two years in, found out my job outlook was making ~40k/year for a four year degree. Decided that wasn't going to be worth it. So I decided I was going to go into the trades. Did concrete for six months, didn't like it. So I decided carpentry was next. A few months of that and I said no thanks, so then I tried plumbing, and then electrical. Hated the working conditions and the dudes I worked under. I decided that I could probably make more money doing something else that didn't require me working 60 hours a week. I decided to go back to school for software engineering. Second semester in, I was struggling hard. I had every reason to think I couldn't make it. Nothing made sense, I was constantly reaching out for help, I felt hopeless. But I wasn't going to drop out a second time. So I figured I would just do whatever it took to get my degree and then find something else. Well something changed my third semester. Something just clicked. Eventually found a job about 2 weeks after I graduated and now I can't imagine doing anything else with my time.

I know this is a super long comment, but my point being, is that it's best to just start something and find out it isn't for you. You're never stuck in the position you're in now if you do something about it. If you try something and you don't like it, there's no shame in trying something new. You won't know what you like until you give it a good try.

Good luck OP. I wish you the best.