You'll bounce back, NR. Once the treatment gets going again, you'll see an improvement.
Don't know if this helps, but I've seen some recent research on how the body can self-heal in addition to whatever else you're doing to fight it. It basically involves getting yourself to a state of very relaxed calm, which helps bring your various systems into balance, which puts the body in an ideal state to go through the healing process. Saw it on Dr. Oz. he had on a woman who did faced stage 4 cancer, but practiced self-healing with her other treatments, and she was cancer free now.
I have to admit, I believe it. My kidneys were majorly fucked up. There was even a point I was hours away from going on the transplant list. Part of my personality is, for lack of a better term, oblivious. Putting my condition out of my mind save for my treatment and relaxing to draw on a regular basis fit the mental and body state described by Dr. Oz. I'm in remission now, and have actually surprised my doctors with how good my numbers are now. One just told me I could go forever if that holds.
Point is, there's some real power there. Try to put your stress out of your mind. Do what you gotta do for your treatment, but don't let it preoccupy you. Find something truly calming and relaxing, that won't get you worked up in the slightest, and breathe slowly and calmly. You are literally giving your body more resources to fight your disease. That's pretty much the entire thing. Do not feel despair or even allow yourself to be disappointed. Just do what you gotta do. Look at it that way without considering those negatives. You can bounce back and kick the ever loving hell out of this thing.