I agree UCLA is a great bet for you. UCB Haas perhaps.
If that won’t suffice (although it’s one of the top public universities in the country), you have CGS at Columbia designed especially for nontraditional students (22+). You could also try and get into NYU Stern using your language skills since NYU has campuses all over the world. Michigan Ross, Northwestern, Stanford (they’re very STEM oriented though, do you have mad math skills?), Georgetown (play those language skills up).
For now, you need to stabilize - top schools will read your story as slightly ADHD with constant interruptions and changes - and save money as most of those universities are unlikely to offer sufficient financial aid.
With a degree in literally anything and a GPA 3.75+ from UCLA (but preferably a “traditional” field from History to Math to Chinese to Economics) + your work experience (if you keep at it/get someone trustworthy to manage it) + a good GMAT score, you’d have a good shot at top MBA programs. There you’d meet adult movers and shakers (instead of 18 year olds, you’d be with people 25-30 years of age).