Back in March last year, when parkruns got cancelled and lock down started, I was a year on from starting C25K and my average distance per run was around 8.75k.
Skip forward to today and my average over May, June and July (so far) is now about 12.5k/run. It has, in fact, now been over 6 months since any run has been under 10k.
I don't say the above to brag, simply a recognition of the fact that for someone who just wanted to keep his fitness up between rugby seasons so that I didn't dread August rolling around each year on account of increasing age and it getting harder to pick up again each season, I really am amazed at how far (literally and figuratively) I've come since deciding to give Couch to 5K a try back in March 2019.
I have had the good fortune to be active and have a reasonable degree of fitness all my life, but it's fair to say that now, in my 50s, I'm probably in the best physical shape I've been in my entire adult life, and it's all down to me deciding to download an app to my phone and deciding to try.
Just goes to show what you can achieve with a good training plan and determination.