Hmmm. It's hard to say what you have done without seeing it in the flesh.

Important rule !!!! Never go sticking things metal inside your engine - especially if your going to lean on them for resistance or leverage.
There are parts made to very fine tolearances in there - some parts like piston skirts etc are pretty fragile despite being metal.

Hold the flywheel with a pair of multi grips and then undo the clutch nut. No need to go sticking things inside your engine at all.

Maybe post a picture or two and the guys might be able to spot something.