Sorry you're here, the club nobody wants to join, but you've made the right start in your journey.
You've just got to keep yourself busy to keep your mind off it. Easy said than done I know.
You could try and keep your fluids down to try and help with the frequent peeing and get some Tena Level 3 pads if you get caught short. They can hold up to 700ml.
You can also get a card off McMillan you can put on your phone to show places if you are desperate to use a loo in a pub, cafe or such like.
You're PSA is high but could be due to other reasons as well. I had proctitis running along side the cancer, and they gave me antibiotics after my biopsy which resolved the peeing urgency I presented with initially. I often wonder what my PSA would have been without the proctitis, unfortunately it didn't change my final staging though.
I've had radical treatment and doing okay, just come back from a nice holiday abroad.
Look forward and plan stuff to do.
ATB,
hawkz