"Keep going at your own pace and rate – you’ll be much happier that way."
I follow the same philosophy. This summer I was running distances ranging from 3 km to over 20 km, and I was listening to what my body would "say". :) My goal was to feel better -- and not to reach a certain magical number of kilometers.
I just turned 49 myself btw, this fall, right before I challenged myself to run my first 42.2 km marathon . :)
Keep running and keep following your own advice! ❤️