Sorry you have joined the group. Deep breath; 1 step at a time.
At 72, after PSA 5.9, MRI suggested cancer, including a specific lesion, in the prostate. Pelvic Lymph nodes were suspicious.
Fusion guided biopsy found many positive cores; including 8s and a 9.
PSMA PET scan followed and did NOT confirm PCa in the lymph nodes.
I chose surgical removal of the prostate, and would do so again. Others have chosen radiation.
Your test results may indicate treatment is warranted; or maybe not.
Patrick Walsh, MD book "Surviving Prostate Cancer " is an excellent resource, together with free download or hard copy of Patient Guide from Prostate Cancer Foundation (PCF.org).
Try to locate a Center of Excellence (COE) or a very reputable Urologist to help guide you with your decision making.
Best wishes.