Sorry I missed your post but been off line. I look at it like this....you get one shot at a cure. After that it's just keeping it at bay.
As to family history...pre bloods and full workup is good. We don't always follow our family...it's not always genes but fsmily lifestyle factors that contribute and we can focus on reducing those risks as much as we can. Great job on your decision, asking questions and talking to a dietitian. Sounds like your right on track. Best of luck for your 1st treatment. Kath x