Welcome to the forum Angler20

You are not a dummy. You're probably just missing something simple. You look at a problem too long you can't see the forest for the trees.

Wrinkles can be caused by; oil/lube in the cavities, too cold a mold, not enough tin/pewter in your alloy.

What alloy are you using? Do you have at least 2% tin in your alloy?

I would start over with a good cleaning "clean well with (dish)soap, water toothbrush", dry the mold well. Dip the corner into the melted lead until the lead no longer sticks to the outside of the mold then proceed with casting, make sure you have a good pudle of lead above each hole. Afer 4 - 5 casts if the boolits are still wrinkled smoke the cavities with a lighter. This should fix the problem. If this doesn't work and you have at least 2% tin then get your propane torch and heat the cavities keeping the heat moving to evenly heat the mold