Lots of good information posted by others, but let me offer my own experience.
I'm 2 years post surgery, and I had the same shrinkage, etc. I did some penile rehab using sildenafil, but was not consistent with it. I also started seeing a specialist in sexual function, which was really helpful.
The specialist encouraged a regular rehab program, but did not "beat me up" when I didn't always follow through. He said even my intermittent therapy was helping out. He also showed me statistics that most patients recover some function in one or two years.
6 months ago I started to feel more sensation down there, and the use of drugs produced an adequate erection. Recently I notice my penis is looking like it did prior to surgery. I guess there is increased blood flow and the tissues retain more of that blood in the normal state.
Is everything the same as it was before my surgery? No, but is it manageable? Yes. I was told not to expect 100% recovery at my age, and that is true.
Nerves are damaged and shocked during the surgery. Nerves take a long, long time to recover. So, be patient. Things are getting better for me. May they get better for you too.
Age at diagnosis-66 Diagnosed 6/16
RALP 10/16 at U of Chicago, Dr. Shalhav. Experienced internal bleeding post op requiring transfusion.
Pathology Gleason 3+4=7, tumor volume 15% Margins negative except for one focal margin, .1mm
PSA @ 6 wks <0.02;16 wks <0.02; 5/17 <0.02; 10/17 <0.02:4/18 <0.02