Hello mate.
I'm sorry that you've got possible prostate problems, but welcome to the forum.
The six month delay between MRI and first failed biopsy seems ridiculous. The three month delay in getting the second seems the same.
I doubt anyone else has waited almost a year from GP referral to getting biopsy results, which is what's likely to happen to you.
Not that is really very significant, but what was the results the pi-rads score of your MRI. If your consultant thinks its 50/50 chance of clinically significant cancer, its probably a 3. Did the MRI give you the size or volume of your prostate. Perhaps more importantly what is your PSA?
Only the biopsy results can confirm IF you've got PCa and IF you have, how aggressive it's likely to be. It's possible that any elevated PSA and suspicious areas on an MRI can be caused by non-cancerous Prostatitis or benign tissue.
I hope the results are with you soon, and are favourable.
Please keep us updated, and good luck mate.👍