Best wishes for your recovery.
This is an interesting and serious topic. Screening is vital, but it's also important to be careful with what action to take because people can freak out when it's cancer. (I just mention this from family experience (no expert) - not everyone is a health care professional like Panerai153).
The wider the screening, the more false positives there are. And the problems with unnecessary treatments have to be factored into the benefits. (It can be similar with breast cancer I understand).
Surprisingly prostate cancer is often very slow growing (10 years+), so often they leave it largely untreated these days in older men, because statistically they're more likely to keel over from something else before this gets them*. Then they start treatment when it reaches a serious stage (like the fellow above). I know someone that has been 'undiagnosed' with prostate cancer, it turned out to be a viral infection (from memory) increasing the levels. The wait and see panned out pretty well there.
[*i.e. The kinds of studies Panerai153 was referring to]
The point is, upon diagnosis everyone was shocked that the plan was to do....basically nothing (but keep monitoring).
Anyway, there are better qualified people than me to discuss it, I just thought it was something useful to keep in mind. It surprised me.
None of which reduces the importance of screening and monitoring, just to keep a level head with the results.