Wat Wrong with me

I dunno starting from last week i cant sleep well and i cant sleep at night when i want to sleep then cannot sleep i dunno my brain think alot of things about my past. I serious starting got emo and alot of stuff i really dunno how to control it. Everynight need to wait until in the morning 5 or 6 am only i can sleep and wake up damn late on the afternoon. Somemore my class already start i also cant sleep well. I dun have any power to go to school and study. I feel not well everynight i cant sleep for it. I serious dunno wat wrong with me now. I really dunno why.