What is wrong with me?

So ived been really irritable lately I pick fights with my twin sister which is weird because we would always get along. And I always loved listening to my boyfriend play video games over the phone and now I just get sooo annoyed to listen to the click of the controller. I'm 21 years old I think I'm too old to be going through a "phase" I can't sleep at night it's really hard. I cry and scream my eyes out when ever I can't go out with my boyfriend because of the anger I just feel so much rage and I don't know if it's because I'm stressed or because of my depression like I haven't had an episode in years I thought I was in control of it but honestly I just want to know if this happened to any of yall is there something wrong with me? Am I going crazy or something I always tried to treat people as nice as possible and I'm not the one to usually start a fight I just don't know what's wrong with me