wow that’s a big surgery. i bet you’re both pretty damn overwhelmed. glass half-full, at least the malignancies are operable and they can get at everything. sounds like a long procedure and recovery, but hopefully they can get everything out of her for good. i can’t imagine how much stress you’re under yourself right now. throughout this journey make sure you find time to take care of yourself too. if you over-exhaust yourself trying to be Super Husband/Dad, you’ll burn yourself out and won’t be any help to your wife or kids.
like rod said, just take one bite at a time. you got this. good luck friend.