well i found out the source of my irradic high idle after doing my P&P job on my T/B. evidently the gasket cracked and broke off right by the IAC port..well it was dark and i was a dumbass when i reinstalled it and didnt notice it...so i had a leak. my question is can i just go to autozone and get some gasket material and cut my own, or do i have to get one already pre cut?? id like to go ahead and fix this, not wait 3-5 days for it to get shipped (has to special order). any tips on cutting gaskets?? thanks!

yeah just go to autozone and get the gasket material, its a black fiber gasket.
The one I got came in a pack with some other materials too