insomnia every night

Not sure why I can't sleep ever. It's really frustrating. I need to get back into the swing od going to bed at a decent hour, like lets say 11pm and not 5am like it is right now. I'm not even sleepy. Well I don't feel all that sleepy. My mind is probably playing tricks on me. I have so much on my mind when I go to lay down at night, I need to find the switch to turn it off! I should try yoga again. Or take an herbal supplement to relax me. Something! This is getting ridiculous!