I started C25K on 5/28/15 and today finally ran the dreaded 20 minutes! It wasn't fast, but I didn't stop. I have been dreading this day for weeks now and delaying it for a dozen different reasons, but I am so glad I did it. This was my first attempt, too!
Last year, at age 40, I weighed 253 lbs and hadn't exercised in at least 20 years. I quit smoking 10 years ago in May and started making conscious food choices last August (I now have a 200+ day streak on MyFitnessPal). This year at 41, I am down 73 lbs and running (or slow jogging anyway). If I can do it, so can you! Next 4th of July, I'm going to run a 10k with my dad, and I intend to place well!