19
I've reached the age where I'm starting to noticably slow down and things are getting harder, I've had pneumonia a couple of times, a bunch of surgeries, and possibly covid in the middle of it.
If I'm honest, I've not got back to where I was, and I likely never will. And it's been really demotivating, meaning that I'll pause my runs, and lose momentum if I'm not careful.
What worked for me was making sure it wasn't just me. I encourage my partner to come out for a walk when I run, so that we can push each other in to moving. I also set myself an event to train for, and once I've done it in a few weeks, I'll set myself another event, even if it's a year away, and use an app/plan to give me some structure to my training.
I have particularly relied on TrainAsOne, as it adjusts with my fitness, but honestly, any sort of plan that gives you an actual plan, will help when it comes to sustaining your momentum.
All of that being said, I'm typing this, after having put off my scheduled run because it's cold outside. But as soon as I've sent this, I'm going to and get dressed and run. And having put that out there in a world, now, I'll actually do it :)