My surgery was Feb 2020. I was having no issues with ED prior to surgery. I had RALRP. No other treatments. Dr. gave me a prescription of Viagra to start taking. I took one pill with no results. My wife also got cancer shortly after. I have had zero stimulation and no drugs. It was probably about the 2 year mark I noticed some life down there. I have continued to have a partial during the night. Whatever they call that early morning erection. 6 months ago I went to Mayo urology. He gave me a prescription of Cialis. I took a couple of pills with no effect. Still no stimulation. About 2 weeks ago I woke from a vivid dream and had a full erection. My first one. It will be coming up on 5 years. Nothing since. So my case is almost 5 years with no stimulation and no self stimulation. My Mayo urologist had explained that I might not be able to after such a long period. You use it or lose it. I am 72. About a year and half ago I did start Testosterone cream. My T runs about 700. I have complete desire just no tools.