I was 70 last year when I had RARP. You can click on my name and see my past comments as this topic has come up before. Also, I'm not a medical professional so this is just my layman opinion of what was helpful for me:
1-- I strictly followed my care teams instructions (diet, walking, meds, catheter hygiene, etc) and that, coupled with a great surgeon, is why I think I had an easy recovery. In fact, the temptation was that I felt so good so quickly (after the catheter came out) that I had to consciously remember not to over exert, but rather wait and give my body time to heal.
2 -- my care team recommended a non-stimulative stool softner (such as Colace). I looked up the active ingredient and got a similar product at Costco. Then I tried it about 10 days before surgery so I knew how it affected me (as I didn't want to try it for the first time after surgery). I don't recall their exact instructions, but I religiously followed their instructions for diet and using a non-stimulative stool softener and never had any constipation after surgery.
3 -- I strictly followed my care teams directions for using the OTC meds (they had me alternate acetaminophen and ibuprofen) and my pain never got to the point that I needed any of my opioid pain prescription we had on hand.
4 -- I sat around a lot with my feet up, so I tended to use the bigger night bag rather than an ankle bag since the bag needs to be lower than the bladder. Because of that, I found cheap velcro breakaway pants on Amazon that made dealing with the tubing easier than if I have regular pants and an ankle bag.
5 -- Cheap plastic bucket for holding the night bag on the floor.
6 -- I used pads in my underwear with the catheter which was useful for catching the odd fluids escaping past the catheter.
7 -- I used a disposable absorbent pad on the bed and that was useful one night when I turned over in my sleep and the catheter tubing pulling apart. Instead of a big mess, I just swapped out the pad.
8 -- I found the OTC antibiotic ointment my care team recommended for where the tubing exited the penis to be helpful to reduce the soreness from the catheter. But the week of the catheter was unpleasant, but manageable.
9 -- I don't remember exactly, but I think my care team told me that after the catheter came out I couldn't lift more than 10 lbs for 6 or 8 weeks. So if there's any heavy chores around the house (eg. filling the water softner salt, yard work, etc) do it before you get the surgery because you'll have to take it easy for at least 2 months after the surgery.
10 -- I used an elastic band for holding the catheter tubing on my leg. If you use an elastic one keep an eye on it as it tends to slip down the leg during the day. That can put stress on the catheter that is bad, so keep an eye on it and adjust the position and tension accordingly.
Best wishes.