I can tell you that the hospital is the only reason you're alive, since GBL/GHB is lethal in doses 'close' to rec doses. You don't even need Tor to get RC benzos that are stronger than Xanax though, and I would add something that acts as a Barbiturate so you have 3 different mechanisms at work, since alcohol mimics Xanax at the GABAa receptor, barbs do it a little differently, same receptor. Like Carisoprodol, Phenprobamate, Clomethiazole, etc. All can be bought online easily and although Carisoprodol is prescription only, some sites and several online indian pharmacies ship it just fine, in "small" amounts.
But yeah your cocktail was definitely lethal, you just weren't isolated. I'm sorry it ended that way.
That's def enough, the phenobarbital will help a lot too since that's 3 different mechanisms doing their work. Good luck mate, hope things go well for you.