"I had a 3.3 in Sept of 2020, then a 4.6 in March of this year followed by 6.2, 5.3, 6.1 over the summer and now 6.4. "

I would most likely throw out the 5.2 score as an anomaly for decision making purposes.

"So, I am a bit confused with the findings. Is it BPH? Cancer? Both?"

I'm not sure if you can have both by definition, I guess it may be possible. I've always thought if you had BPH it was a more uniform enlargement as opposed to lesions or tumors within the gland. Maybe.

"My doc says "A month here or there when it comes to the possibility of prostate cancer is not usually worrisome"
My doc said something very similar, more like "Surveillance is not a good option, we have to do something, but, we don't have to do it right away" The context was in him telling me to do research as to the direction I wanted to go for treatment.

I didn't have any symptoms other than similar to yours either. My biopsy results indicated the concentration of cancer was on the right side, because of this the surgeon also performed a Lymph node dissection on the right pelvic lymph node, luckily that was negative when tested.

To answer the faith question, I have a pretty strong faith, There was/is a lot of prayer and I believed it helped me a great deal with acceptance when I found myself going to darker places mentally.