Lots of really slow time before bed. Like three hours for me works best. Also I turn the lights down real low and just start to slow things down. I dont know if you have the time to do that but it helps. Also another thing to do is meditate and clear your mind of everything before you go to bed. Just sit in a quite room and focus on your breathing for like 15 mintues. One last thing I found helpful and a counselor recomended is to have worry time. All you do is sit down and write down all your worries and what your going to do about them. That way when you fall asleep they wont be in your head. Hope that helps.