I can't fall a sleep!!

It's 3:24am I can't fall a sleep. Omfg I got to be at work soon. I got to get up at 6:30 to get ready for work. I'm doing a 10 hr shift. How am I going to get through the day. During the week I have the same problem. I would go to sleep around 12:30am for some reason I wake up at 4:30am. I have dark circle under my eyes/bags. I have to many problems in my life maybe I can't fall a sleep. I need sleep.