Si,
My friend who had cancer found that the really nasty effects didn't last all that long. After a few treatments, she started to know how she was going to feel, and for how long. Being self-employed and short of money, she even started taking on work during the feeling-more-or-less-OK periods. There are different sorts of chemotherapy, and it may be different for different people, but I thought it might help you to know this.
Also, I remember a homeopath who I used to visit telling me that homeopathic remedies could reduce the side effects of chemotherapy. I don't mean the remedies you buy over the counter; you'd need to see a qualified homeopath. It might be worth a try. I know a good homeopath in Shrewsbury, if that's any help whatsoever!
If I think of any more practical advice I'll let you know of course. And, as you know, we're all crossing fingers, praying, and thinking of you.
Take care, and hang in there.
Whirly