Peter,
I was in a similar situation recently, my MRI scan came back with two lesions and a score of 4.
I was scared of the biopsy results, fearing the worst based on the numbers and my limited research.
When the result came in, that there was no cancer detected, I was unsure how to feel. Happy obviously but also confused as to why I had been forced to expend such energy worrying about numbers and feelings due to a lack of information and explanation from the NHS. Even the discharge letter to my GP made me feel like a fraud as it said "if he is concerned about his prostate health in future he can ask for a new referral but not for 12 months"
I wasn't concerned about my prostate health at all until the psa test that was done as an afterthought to a skew of tests came back raised and they hit the panic button.
It felt like the consultant was saying I'd wasted their time by not being properly ill.
I hope you get a similar result, but not the same feelings I got due to very poor communication of the results.
As Adi says, take things one step at a time and try not to Google everything as your brain only seizes on worst case outcomes.
Mick