It sounds like you dealt with some of your problems in high school with the music/dancing and talking to self, etc. and it comforted you a bit; now without meds to help stay focused and having not yet learned better ways to cope, you are using a method that worked for you in the past, that's good, in a sense, because your body/self knows what you like(d) and what helped, etc. You are trying to help yourself as best you know how.

I would get some counselling to learn better ways to cope and get back on your meds as soon as you can. I did not figure out what was going on until my 20's and by then I had 10-15 years of bad habits that were hard to break/work my way out of.