I'm so sorry you are in that situation. Wish I had something really good suggest.
I found that cutting back on salt helped me a lot since Sodium is a stimulant. I also cut back on caffeine although sometimes I cheat on that.
I take herbal supplements but have permission from my doctor since supplements can be harmful and dangerous, even life threatening to some. I use valerian, melatonin and hops.
I never take supplements without advice from a doctor though since I have heard so many tragic stories and horror stories about taking supplements without medical advice.
I hope you find relief!!!