For now i can still only justify speaking as a lame protoss player

. As far as i could tell, there wasnt a huge difference between you. You had the supply count advantage at some points, but when it came down to the big battles, you looked pretty even. I might even suggest you couldve won earlier if your supply wasnt tied up in corruptors for so long..
wrt the archon toilet, it was a big loss, but..in fairness you came back quite quickly in the supply count. Your roaches held the counter so well having delayed with spine crawlers XD.
At the end, losing your entire drop and then being immediately counterattacked with the recall wasnt a great situation to be in tbh..
I'm still trying to master the zerg tech tree, but I wonder if there's a better unit mix you couldve used later on against T3 protoss. Roach hydra is always good, but protoss was using the top reaches of their tech tree against you. You had brood lords in the archon toilet, but no sign of them thereafter..