I have always been happy that I was introduced to smoking marijuana in Oakland, CA in 1967, when the Beatles' Sgt. Pepper album was popular. It added a tremendous source of amusement to life. For me, it meant that I never wanted to drink more than a beer a day, & nothing else.
Since then, having a smoke in the evening has gotten me through an MA, a law degree, a divorce, many stressful child abuse trials, & my PCa diagnosis & treatment. (Note that I didn't smoke until I was done studying or working).
I had high (excuse the pun) hopes that cannabis would be a cancer cure. So far, that doesn't seem to be the case. I was working with one treatment group until I had a drug interaction with gabapenten (neurontin) at a certain point. I realized that the "medicinal level" they advocated would have meant I'd be too stoned, & too much of the time--& they had no completed research to establish efficacy.
Despite the fact that cannabis is not, to date, a cancer cure, I believe my experience & that of many satisfied users establishes that it plays a positive role in the lives of many people, definitely including cancer patients. This is above & beyond its value in treating nausea from chemo.
Besides the stress relief it has provided me, it has enhanced the pleasure of many things: enjoyment of relationships with other people, enjoyment of music & other arts, enjoyment of entertainment, enjoyment of humor, enjoyment of natural beauty, enjoyment of reading, & even feeling better while doing chores. Life in the Trump era is stressful. Several comedians have jumped in to create humor at the expense of Trump & his associates that provides an outlet, if certainly not a cure. And they are all funnier after a couple of tokes.
I would caution that I'm speaking as a person who grew up without deep childhood traumas. Since my career--jobs & volunteer work--was in the field of child abuse & neglect, I know that all too many people are carrying a psychological burden that I don't have. So I can't pretend to speak to whether people with deep traumas will find cannabis beneficial or not. The same goes for those with wartime traumas. But I think it will benefit some with those backgrounds. It will certainly be more likely to benefit them than alcohol. This goes for everyone, actually. And the same applies to hard drugs.
Finally, I am aware that some people are not open to the idea that this (very unfairly) persecuted drug, one that is never fatal without adding a danger like driving, might provide them with a lot of pleasure & stress relief. I am also aware that some people are just too uptight to relax & let themselves get high. But if you're not like that, & especially if you can get legal cannabis products in your state, I think you may find cannabis a source of relief from the stress of having cancer, & a source of added pleasure in your life.