Granny, I think you deserve some credit for harboring excellent intentions. After all, lots of people seem not to even give a rat’s butt about their fitness.
I hatched an aphorism several years ago with which I suspect you’ll resonate: CONSISTENCY TRUMPS INTENSITY.
At age 81 my “routine” has decelerated to “pumping” light dumbbells with my wife 3 x weekly along with a short daily walk which I do faithfully, pressing thermal underwear into service on cold days.
At walk’s end I reward myself and my wife too, though she did nothing to deserve it beyond being wonderful. Coffee for me, tea for her along with a bran muffin I bake for us both.
Notice the “reward” is enjoyed following the fitness activity. B.F. Skinner would be so proud of me. Although I doubt ole Skinner would agree that being generically wonderful
is worthy of reinforcement. He seemed to be an anhedonic sorta guy.
So here’s the formula. Choose something you really enjoy and make it contingent on exercising. Treat yourself like a lab rat; gotta run the maze before you reach the M&M dispenser. Try it and tell us all about it. Don