It’s good to hear you’re on the road to recovery.
Although it’s not usually what we want to hear after surgery, the best tools we have for complete healing are patience and time. Our bodies know what they’re doing, and all we can really do is take it easy and not cause any setbacks.
Having said that, there are some things that can make us more comfortable in the meantime. One is making sure that the catheter, and your penis, are aimed in the right direction. During the day it doesn’t really matter, but at night when the erections happen it’s usually best if it’s aimed toward your stomach. Another thing is lubricating both the tip of your penis and the catheter tube as far up as your erection will travel, which can help a lot.
As for constipation, it’s not unusual to go several days after a surgery. Take some docusate twice a day, and if that doesn’t work try Miralax once a day.