Spaying my Ragdoll

Getting this lady spayed in a week very nervous. Can you share some positive story’s , What do I need to help her stay comfortable after if?

I have ordered a spay little jacket from Amazon as the vet suggested

I feel incredibly guilty that she won’t have any kittens but I feel it’s best for her after her first heat she seems very uncomfortable she was never intended to have kittens anyway it still makes me feel so guilty though.