Hi Faith,
You are not a wimp you are very ill and being very brave going through all the treatments you have been having. I think cancer is individual to the person, some seem to be less affected perhaps it's down to the tumour position, metabolism, age, how long they have been living with the disease, or a thousand other things. Please don't think you are a wimp, your fighting for your life.
There is no way I could work right now, even a trip to the supermarket is out of the question and I am not even having chemo!
Is there anyway your employer would let you work part time from home if you feel up to it. Can you get some sort of sickness benefit or disability benefit where you are?
God bless you
Cee