what do you guys do to....???

I'm having problem trying to sleep, I try to go to bed early but I never could actually sleep until 2 to 3 hrs and sometimes even 4 hours after I lie in bed. I was wondering if you guyz have trouble sleeping what you guys do to help you sleep faster besides pills, counting sheeps, drinking milk, or have sex, wellz I tried all of those (except for the sex) but it doesnt work.