While science is basically never absolute, and those bits of science aren't particularly strong, it's really worth a try.

Forgive me if you've already given it a try and know it doesn't work for you. That's unclear from your post, and not the vibe I get from it. I know not everything works for everyone.

Sleep hygiene does have a very strong correlation to life satisfaction. I really hope you can find the later, even if not via the former.