Advice on sleeping?

I often struggle with falling asleep and staying asleep due to paranoia, nightmares, and other related things like sleep paralysis. My anxious thoughts get very overwhelming at night and I just can’t shut my brain off long enough to fall asleep. It definitely takes a toll on my health. So genuinely speaking, does anyone have advice on how to deal with these things? Home remedies? Anything that could help me relax or just any general advice? Thanks 🤍