I found that my recovery from incontinence went like this:
No control for about 10 days but then dry at night or when sittiing/lying.
It took a few more weeks before I could control myself when standing up.
The hardest bit to get under control was walking, particularly longer distances. As you say, walking does help take your mind off it for a while until the practicalities have to be addressed.
I got there in the end but remember that you have had major surgery and it depends on exactly what the surgeon has had to do as to how much retraining your brain has to do to recover bladder control.
Don't push yourself too hard too soon.
All the best
Kevan