Oh no! What a bummer. I would go for a cute chin length cut that has lots of texture and layers in it so that you are able to remove as much of the damaged ends as possible. Going for a chin length cut will help to enclose the jaw area. You can even point cut into the ends adding a great amount of texture style while removing the really bad areas that are still left after your new do has been established.

Any of these will work.

I agree with @CheonYoonA ! but I think a darker colour would suit you best... I would suggest u a brown chocolate color :)

would be to let your hair long, getting very little shadowing, and a bit of bangs would not hurt! however, you are beautiful and I think any hairstyle suits you best. I hope I helped.

Maybe medium length with a side fringe !

I would go with layers that would go towards the face and jaw. This helps with slimming the face and will help with your concern.