1) are the screws left-handed? (left to tighten)
2) if not, then “EZ-out’ kit the one you screwed up. On the ones you haven’t messed with, from autozone, there’s a catalyst product better than wd-40, called PB Blaster or Blaster Chemical Penetrating Oil.
I hate when I bungle a communication. I didn't destroy the screw - I broke off the Allen bit, which I was able to extract from the head of the screw with pliers.
I think I'll swing by AutoZone and get some PB Blaster. Sounds like a winner.