I have done research, but not have seen answers to my specific questions.

I have other small animals, but I have never owned a rabbit before. Almost all my other pets, I had for months before they were old/big enough to be neutered/spayed. This rabbit is already over a year old, but is still hesitant around people. I have had her for less than 2 weeks so I don’t really know her personality nor have we bonded yet. Since she has already been sexually mature for so long, would it be better to wait a couple months to spay her so I can learn more about her and get her more used to being handled and around humans or should I just schedule her surgery as soon as an opening is available?

If I schedule her spay soon, are there any foods that I can give over the next couple weeks so she will be in her best possible health for surgery? (I have read that you should not give supplements before surgery in animals.) I know that the vet won’t do the surgery if she is not healthy enough for it, but I am a bit paranoid because of the situation she came from. I don’t know much about it, but the women I got her from is part of a rescue and foster group for dogs. She was at the original owners home rescuing dogs when she saw the poor living conditions of three rabbits also in the home. (They had always been housed separately so none were bonded,) She convinced the owners to also surrender the rabbits. They appeared to be relatively healthy while in her care. The other two were rehomed quickly, but the one I have taken in had difficulty finding a home because she has little interest in interacting with humans. I am feeding her a very good quality rabbit food and plenty of hays (excluding alfalfa), but I am worried about the things that were lacking in her diet during her important first year of her life.