In need of advice

I’m noticing that I haven’t been myself lately. After I moved out of my parents house, i started having strange feelings. i put on 29 pounds in 6 months, I’m constantly battling my emotions. I’m literally always on the verge of tears. I constantly feel like a disappointment and a failure. It feels like this change had started more fights with my boyfriend and parents. Im having roommate trouble and am really unhappy with my living situation but feel like I’ll be a burden anywhere else. I’m only 19 and I don’t know What To do