Most of those drugs are probably just distracting you from the withdrawal.
Stopping an SSRI isn't usually dangerous from a physical standpoint.
I got the "brain zaps" for months after I stopped taking escitalopram for years, but that's likely due to the serotonin changes. Annoying was about the worst it got, though it was definitely not pleasurable. Even if I had alcohol, the zaps still came. Same with having a benzo. I still got the zaps and mood changes. You're probably just distracting yourself with the other chemicals, and not really staving off the actual w/d from it.
If anything, I wouldn't go getting yourself hooked on diazepam, or morphine, in a quest to improve things. Diazepam withdrawal can be life threatening if you become physically addicted, and while opiate withdrawal isn't usually deadly it doesn't sound like fun (never been addicted to opiates, and don't plan on it), but I wouldn't go using something else thinking it's improving the situation.
SSRI withdrawal sucks, but compared to the rest of the things in your list it's a walk in the park when it comes to dangerous or brutal withdrawal.
Don't trade up, is my point.