Can somebody please give me some tips or advice...

I suffer with bad anxiety of all types tbh, but it's worse when I'm in bed trying to go to sleep.

I've literally tried everything to help it but I can't seem to get my head to stop over thinking, panicking and worrying about the future and other shit.

Does anybody know anything that could help me relax and make my mind stop thinking!! I just want to be able to go to bed and not think about things for 4 hours then finally fall asleep...I'm so worn out by it....:(