I'm not LEO, and I never post in this forum, but I have been through two rounds of cancer. Much of the advice you get it is very well meaning and practical, but also extremely hard to implement. I had tons of people tell me I was going to be fine, without even having a clue what type of cancer I had or knowing anything about its progress, they just didn't know what else to say. I also had people give me was insanely bad advice, stop all treatment and just smoke pot was fairly common, drinking apple cider vinegar was also surprising popular of among the "never had cancer myself" crowd.
But I did have a fantastic oncologist, one of many I saw, tell me, "there has never been a good day to have cancer, but there have never been a better day than today". I am almost at 4 years with no signs of cancer, still something I think about often, but it gets easier all the time.