My mom

Everything has been so good between me and my mom lately but the other night something just snapped, now she hasn't talked to me for 3 days straight and calls me a liar when I'm telling her the truth because she believes other people over me. Like I literally don't have the mental capacity right now to deal with trying to deal with school, working my ass off almost everyday, trying to have friends, my depression and anxiety, and now her being pissed at me for no reason. I literally don't know how long I can deal with this and it hurts