The two pieces of advice I found most helpful when doing Kegel's:

"Nuts to guts" Imagine trying to pull your scrotal sack up into your lower abdomen without moving anything else, specifically without squeezing your anus closed.

Long reps/short reps...Do ten reps at a mild to moderate intensity holding each for a count of ten. Then do 10 reps as fast and hard as possible...try doing ten in ten seconds (or better),

My own experience at age 74 (surgery last year April 4) was lots of incontinence the first month, decreasing the second, and pretty much gone after 4. I stopped doing Kegel's 3 months ago with no return of incontinence. I wear the thinnest pad (#1) to catch the minimal post void drip which I sometimes can't squeeze out.