I just returned from my 18-month check-up after my RALP. 18 months ago I was told I would likely be completely continent in 6-8 weeks and begin to get my erections back in 8-12 months. I can't call those lies, because in truth I was told that everyone recovers differently, but I sure bought the glass half full possibility. It took me 17 months to get continent, not 6-8 weeks, and that was only because I am willing to spending an hour a day doing my core/Kegel exercises prescribed by a pelvic floor PT. And continence for me (and most of my friends who have been through this years before me) means I will still leak a little for the rest of my life. I call it "in the pipeline" urine. Before my surgery, I could shake the last drops of urine out when I went to the bathroom and never have an issue. Now, when I think I'm finally done with the shaking and zip up, several drops that were somewhere in the pipeline make it outside to freedom. If I'm not wearing a thin pad, I may show a wet spot. As for erections, I have been rehabbing my penis every day with a VED, to be sure blood flow kept those vessels healthy in anticipation of the return of naturally occurring engorgement. Today my surgeon/urologist told me if I haven't had natural "wood" by now, it's likely I won't ever again. Yes, it may happen in the next 6 months, but the odds aren't great.
On the good side, my PSA readings have been negligible over this year and a half, and I am thankful the cancer is apparently gone. But I write this to warn you that patience is a necessity and nothing is guaranteed. Good luck.