You seem to qualify to be in the new "favorable intermediate risk" category. The significance of this category is that it has about
the same cure rates as "low risk" and all the same treatments are likely to work as well. That now includes active surveillance. It's worth reflecting upon what that means - it means that your type of prostate cancer is likely to progress so slowly that you can always elect treatment later, as long as you monitor it closely. Even if you prefer treatment, that should give you some comfort to know that.
I would urge you to decide not to decide, at least not until you've let some time pass and you've met with experts in all the therapies
open to you. I think that waiting a minimum of 3 months is a good idea. That leaves you some time to get over the shock of the diagnosis. You may find that as your emotions settle down, your reasoning abilities improve. Men who waited 3 months had the same outcomes as those who were treated immediately, even in high risk cases:
Treatment delay in primary radiation therapy(there's a link there for the same thing about
delay before surgery)
Slow it down, take your time. The only men in whom I've ever seen treatment regret were among those who didn't take their time to decide, and didn't go through, what I call, the patient empowerment process.