New here with prostate cancer.

Hello and thank you for being here. I am 75 years old and have been diagnosed with prostate cancer. I have been reading posts here and anywhere else that has information about it.
I am getting use to most of the acronyms and abbreviations I read but not all of them. Is there a page that spells them out?
I have read that some people have 3+4=7 or 4+3=7. My biopsy shows both plus some kind of nerve invasion so does that make me a little different from others?
I also have had a psma pet scan that showed it has not spread past the prostate.
I have a doctors appointment Monday morning to go over everything but I’m not sure about what questions to ask about the different options regarding surgery or radiation as there seems to be options for both.
I am using the VA in San Francisco for my treatment if that helps you with any response you may have.
I am sure to have more questions after the appointment and I am very grateful for your help and support.

Jim Carr