Should I take leaves away? Maybe defoilation or something like that

I'd just let her be as is, until harvest.. She's already been through a lot with the stem breaking.

You could take 2 or 3 of the larger top leaves off. Just remember that the leaves are the engine for photosynthesis so you really want to keep as many as you can. If a few at the top are really blocking light, then go for it. You have to strike that balance though. Good luck!