Sleep Issues

I could not fall asleep again last night and it was too late for me to take my ativan if I wanted to get up. Took me a while to get down I tried at 11 but was up until 1230. Then at 3 and 4am I could not sleep and had to be up at 645am. I am now super tired. Class is almost pointless because I can t focus and am too tired. But t least I got my attendance points. Have 2 hours of class left and idk if I can pull through. Tips for better sleep and how to stay asleep? And how to be more awake in... Sleep Issues
https://www.myptsd.com/c/threads/sleep-issues.50350/