I've not had to go through cancer treatments w/any of my Fur Posse, thank goodness, so I can't say that I know what you're going through except that when our beloved furkids are sick we all worry in the same manner. It's tough enough going to school and trying to keep up w/life in general. Add a kitty w/cancer to the mix and you've got some major stress, Katherine. The fears that are racing through your mind are understandable. Probably the best stress reliever is a good heart-to-heart w/your vet. Tell him/her your fears and try not to let the 'no guarantee' clause frighten you. As we all know, life offers no guarantees but you can offer one to Sydney and that's to be strong and do your absolute best for her, which is what you've been doing all along. You're doing a fantastic job. My prayers for you and Sydney have never stopped. Keep the faythe.