Funny thing, I actually started fostering with the intention of “failing”. I had 1 cat that I had adopted as a kitten, and he used to play with my roommate’s cat, but then we moved and I wasn’t sure if my cat missed having a buddy around, so I decided to give fostering a shot as a way to test it out.
One of the things that helps me say goodbye is knowing that I can’t take in new fosters if the current ones stay with me. I also get to meet all of the potential adopters, and most of them send me updates on the kittens as they get settled in, so I feel good knowing they’re in good homes.