Hi Aston, I started in a very modest way and could barely ride a couple of miles before my legs turned to jelly

but im a tenacious ****er and kept at it. My persistence was key and my mileage slowly but surely increased. Hills were my nemesis and theres a lot of them in my neck of the woods [Brora, Highlands] i just kept at it--and am still keeping at it! Now my rides are typically 35- 48 miles on alternate days which gives the old legs a rest. At my age i didnt imagine i could get 'sportingly' fit again.. but i guess i have though it is cycling specific. Occasionally i can surprise younger riders especially on the hills.
I dont go to the gym as this doesnt interest me, my only ambition is to be a reasonably competent touring cyclist- that'll do me