Stay away from Benadryl, folks.
Kratom is cool if you’re trying to quit opiates or alcohol.
I can’t recommend kava if you don’t live in a place where it’s cheap, but if that isn’t an issue it has reverse tolerance and actually gets more fun the more you use it.
I used to take that stuff all the time. It's not really worth it, except maybe just for the experience a couple times. It starts out very fun, but the tolerance builds up very quickly, and excessive dosing leads to very bad paranoia that lingers even after you quit. It's a very expensive addiction to feed. At my peak I was doing 2-4 entire bottles of tussin a day, and would barely feel anything. At least for me the tolerance never went away, even years later.