I adjusted the indexing cable to wrong direction, ended up getting the derailleur stuck in the wheel and bent off. I am a moron, I know.
Now, I obviously need to replace the derailleur hanger, how about the chain and can you see any damage on the rest of the derailleur? The pulleys spin just fine, cable seems fine. Is there any specific damage I should look for?





In a perfect world you would just replace that derailleur because undoubtedly there’s some little problem somewhere, those things can be touchy. But in a practical sense just eyeball it the best you can and zip it right back on, see how it goes. If you have persistent problems, you’ll know to swap it out quick.
PS, no shame. The best way to learn is through real world experience. Things happen.