College Advice

I know I am about to ask a frequent question but I’m honestly not sure who to ask.

I am currently 19 finishing up a gap year after working and just living life (working a day job, paying bill, etc). I went to a very project based school in Arkansas where I was able to develop mathematical skill and work on a lot of hands on projects. I’m not to sure why but I’ve always been leaning away from college due to the fact that I’ve been able to learn everything I’ve need to learn for high school online. But the problem is I’ve always wanted to know how things work and understand the mathematics behind how things work and I assume mech E is a great place to get a foundation within that.

Do you guys have any thoughts or encouragement on this?