I dont know what to do

Im not happy at all right now. My boyfriend of 4 months broke up with me a few days ago, and he was one of the few things that i looked forward to seeing. It wasnt mutual, despite him “acting” like an a**hole to make me hate him in hopes i would break up with him so he didnt have to. Ever since then, i feel so lonely. I need something to bring happiness back into my life, cuz currently ive been home all day except for school. I have friends, but i dont even want to hang out with them, im just tired. I keep thinking about things i couldve done to make him happier. My thoughts are driving me crazy, and i want to do things or find something to make me happy. My spring break is here and i dont have anything to do.