Good Morning.
One Doctor's PRP is not another. The quality of the process matters. And there are new opportunities all the time.
I had a partial tear and it was a pain in the butt- getting worse. I am a cyclist and I really mean it was a pain in the butt.
You want to stay active- but you say you are back in PT again. If you have continued the program the first time, a second round might suggest that you will need to consider the surgical option as a superior choice. Your injuries are severe and old enough to warrant consideration of surgery. PRP (high quality) would be an adjunct. I had my hamstring repaired at Mayo, Florida. I also had PRP for my knees and that seemed to help.

If surgery is being considered I would ask for all the steps before and after. You might need to be totally non-weight bearing as the damage being repaired is more extensive. Six weeks is the usual time frame. Stick with the progressive PT. There's a reason. Gat as many questions answered and you should be happy with the outcome.