Easy, find a job that pays well and take it seriously. If you need to work your way up a bit, that's an investment in yourself.

I dropped out of college almost immediately because the course outlines indicated we wouldn't even get to what I learned in my first year of high school by the end of the second semester.

Got a shitty job as a telemarketer knowing that they promote up a lot and quickly, and by the time I was 20 I was making $45k a year. None of my friends who went to expensive schools and saddled $100k+ in loan debt made even anything CLOSE to what I've made until our mid/late 30s.

Unless you're intending to go in a very knowledge specific field (engineering, chemical stuff, medicine), college is a fucking sham and doesn't do anything for you at the end of the day.

My lack of degree or college education has literally never come up at any company or in any interview outside of - maybe - oh where did you go to school? You didn't? Oh, OK.

Be good at what you do and treat your job as your career and way out, because it is.

EDIT - also, why do you feel like you NEED to move out? If you're living at home rent free and stacking money, which you are, why the fuck do you want to get out of that? You  have a girlfriend too, so it's not like it's embarrassing to girls.

The myth that you need to move out after high school is just as harmful as the myth that you NEED to go to college, even if you have no clue what you want to do and end up with a worthless degree in communications.