I can't fall a sleep again.

I'm really tired and I can't fall a sleep. It's past midnight I should be sleeping. I got to be up early tomorrow. I have a sleeping problem. If I go to sleep early I be up in a couple hrs. When I don't need to. When I do need to go to sleep I can't. If I don't fall a sleep I'm going to snack on junk food. That's not good. I need a lot of coffee tomorrow if I don't get any sleep.