With a radical prostatectomy you can expect a 1-5 day hospital stay. Erectile dysfunction occurs in around 60-80% of patients and can be managed post-operatively with medications/ devices. Pain/ discomfort may last a few days-weeks. Patients may also experience urinary difficulties/ bleeding which would need to be managed appropriately. Strenuous physical exercises and lifting heavy weights may need to be avoided for sometime following surgery. You may like to discuss the post-operative recovery in detail with your treating doctor.
Hope this is helpful.
I wish I had an answer for you. I am hoping you came through the surgery well (I'm writing this a month to the day after your scheduled surgery). My husband was diagnosed with a VERY high grade prostate cancer (gleason 10), just before Thanksgiving and has not yet begun treatment. I do not think in his case, anyway, that surgery is a good idea, as he's 72 and has pretty severe emphysema and other chronic health issues.
I am hoping that, due to your much younger age, that you'll come through the surgery with flying colors and that it can get all the cancer.