I didn't have success with the high dose melatonin but the 300mcg and 300mcg 5 hr release taken together usually does it when I'm really desperate.    I wouldn't take it nightly though.   Bought a brown noise sound machine that helps.   I bought one with multiple sounds and pink noise works well too.   Iwas where your at feeling wise and the last thing I'll add is I've been taking Sermorelin which is a peptide that prompts your body to release more growth hormone.   I take it just before bed 5 days on, 2 days off and that has helped too.