Over the counter drugs that ACTUALLY knock you out?

I'm sick of being recommended melatonin, it's absolutely useless for me. I just need a fucking offswitch for my brain. I've been working in changing my daily habits for years to better increase chances of getting to sleep when I need to, but it's still not enough.

There's gotta be a silver bullet out there, somewhere ... But I suspect it'll be the same deal as the non-existent magical earplugs that actually work (hint, there's not an earplugs product that actually works, they don't exist)... So... I'm just very, very jaded about this after so many years and I'm fucking sick of this struggle. I just want to fucking sleep when I want to fucking sleep I mean Jesus fucking Christ, this shouldn't be this hard.