So, you have a hard time swiinging your leg up and onto your bike. And dismounting is getting harder. But, you don’t want to ride with the seat too low, not enough power, hard on the knees.
Solution? That gas strut that is in your desk chair. Yes, that one, the one you pull the little handle and the seat rises? Take that, a cable, run it through the frame to a button on the handlebars. And, the results you can see below.
Its an elevator for your seat.