How to get my stripped battery screw out?

Hello, I have a mid 2010 MacBook unibody. The battery on it was bad. It would work when I plugged the charger in, but one day I noticed the computer was wobbly and the casing was popping off. I opened it up and noticed the battery had expanded. Thank God it didn't explode. I ordered a new one online and it came with the necessary screw drivers to remove it. When I began to uninstall the battery, I stripped the last screw I needed to remove to get the battery out. It was a triwing screw. I researched how to remove the screws and have found answers saying to use a Dremel, cut a slot and then use a flat head. I am very uncomfortable doing that as I have unsteady hands and the screw is right near the logic board where you disconnect the battery and it's the side where the battery began expanding. I tried to see if pliers would work. I thought if I was able to get a grip around the head, I might be able to turn it, but because the screw is too small and I can't seem to get a grip. I've tried larger drivers, different drivers, pliers, just to try and get some kind of grip, Nothing worked so far (obviously) I don't know what else to do. I thought about a computer repair shop but I cannot even get to one right now. Any help on how to get this thing out without harming my logic board (or my life lol) would be appreciated. Thank you!