Jack
Hi and sorry you find yourself here, this is the place for support we are a caring bunch. You will get replies and support from both men and women so don't be surprised when one of the ladies like me pops in to chat!
I agree with Chris that it is really unusual to get this diagnosis in a letter and really quite uncaring. The normal is to have a one to one with a consultant urologist or sometimes with a clinical nurse present too. They would normally suggest you bring a partner, wife, family member or friend with you. After all being told you have cancer is a shock no matter how good the outlook might be.
From the limited info you have given it sounds as though your diagnosis puts you in the "cure" camp.
You should have been given a Gleason score and staging something like 7 (3 +4) and T2N0MO as well as your initial or subsequent PSA readings. This info is helpful to share.
From what you have said you will get several options to consider and a reasonable amount of time to consider these thoroughly.
Ray has given you the steer to get the toolkit from here which everyone finds helpful and informative.
If you have a consult coming up try and take someone with you as they can make notes or ask questions on your behalf if you get a bit overwhelmed by it all.
You will get replies from men who are in a very similar situation to you who have found the waiting for results, decisions on treatment etc. Both frustrating and difficult. You can read their profiles by clicking on their avatar.
In the meantime until you know more avoid googling as the answers you get will be generic about all stages of PCa many of which will be irrelevant and quite frankly scary.
Best wishes
Xx
Mo