@billybwbf2 take a look at the discussions under prostate cancer support, if you haven’t already. A lot of info about rehab there that I don’t know 7 years ago. The first year or so your nerves apparently are in a bit of shock. I got no instructions. Didn’t have any decent erections. Decided to give Trimix injections a go. Have a friend tell me about them about 2 years ago and took me more than a year to decide to try. They work magic on me! Gives you an erection that lasts a good hour or more.