I think I need help...

So last month I transferred to the other campus that my school has(there are only two campuses and it’s a honor to go to the other one in your third semester) but every since I’ve been here I’ve hated classes, I’ve been gaining weight because I’m high nearly every night and I keep eating. Some of that is munchies but the rest are me eating to be eating. The sad part is I’m supposed to be a dancer, and I can’t keep binge eating like this because I’m starting to gain more fat that muscle and I’m hating myself for doing that to my body. I want to be better and go to the gym, but every time I want to go something pops up. Can someone help me with this, I want to feel better about myself again😞