Hi Hambeak.
We haven't talked before, but I would wager that if you had a dear friend who had just gone thru cancer surgery and was talking about giving up you would explain to them that they were in no position to be making that kind of a decision right now. Same for you. You are under the influence of surgical pain and pain killers.
It isn't your fault, but you are not thinking clearly!
Make an agreement with yourself to put off any changes in your treatment until you are feeling better. Take your meds, go thru the chemo, and keep in mind that
Living well is the best revenge!
If your kids think they have an inheritance coming, leave them each $1 and SPEND THE REST!
Take care of yourself, be kind to yourself.