I did this after high school. Didn't really have an idea of what I wanted to do and pretty much everyone I knew had low expectations of me which felt constantly defeating (that part didn't go away for a while after I left though). Moved to CA from the midwest. At first, leaving felt liberating because I could do what I wanted without anyone's old expectations of me. Then it felt kind of lonely for the first year or two. I didn't know anyone and was under 21 so all of my coworkers would hang out at bars outside of work and I couldn't join. That aspect felt crappy but looking back it was a good thing because that's when I started taking classes at the community college. I worked full time, focused on school and really started to figure out where I wanted to go in life and just went for it. After a while you start to making real friends and things begin to feel more like home. I lived alone for 4 years and it was great, I know it some people feel better with roommates though (and it's cheaper). Moving away was the best decision I ever made and I think it's really important for people to learn how to really be okay on their own. It helps you become confident in yourself and emotionally independent.

Basically, its hard but totally worth it in the end.