I actually started running ~5 years ago with the intention of running the London Marathon. I applied to run the first 2 years but didn't get a spot. I then got a spot through the charity and got delayed another 2 years with COVID sigh.
When I first started running I could barely make 60 seconds, a few weeks ago I ran my longest run of training at over 21 miles. It's amazing to make your body do something your mind thinks is impossible, it does wonders for both.