Entering a canoe at 70yrs old, as I am, is more of a challenge, than ever !
I wear knee boots, wade in as far as I can. place my right foot in the center, (entry from the Port side), with bent knee, grab the gunnels, slip my rear onto the seat. With my Left hand on a paddle, braced against the bottom, of lake or stream, to steady, I raise my Left foot , shift a little for comfort, and I'm off.
I find this keeps my center of gravity low, and minimizes tipping over !
Exiting. Left foot out, spin to the left. If on solid footing, Put my weight on left foot, again holding the gunnel with my left and stand.
Getting out always seems more difficult !
This may not be much help Gerald ! But at least you know you have company fighting this Getting Older thing !
Good Luck ! And keep that Paddle wet and your Seat dry !