Inspiring post! I only started run/walking in May this year so my first year anniversary is not up yet. I was 16 stones and realised my 3 year old twin daughters were not going to see much of me if I carried on that way. So, at the age of 40, I took up running. I have a short attention span so i got myself a spot on the VLM to make sure I did not fall back in to my old ways 
Like you I wish now that I had started earlier. It's such a great way to live. I too love my food WAY too much to lose weight by dieting. Ok I have got things under a bit more control but the running allows me to eat more or less what I want while continuing to lose weight.
My first 10K was an epic achievement for me. I did it in 58 mins or so and was dead at the end. Loved the sense of elation crossing the line though. I ran my second 10K several weeks ago. It was on hilly ground, something I had little experience of and was not expecting. I finished it in 51:38. A couple of weekends ago I ran my first half marathon! I came in at 1:53:00 and felt amazing.
At 12 stones, or thereabouts, I have another 0.5-1 stone to lose. I have half marathons booked in Feb and Mar and then it's the big one for me. The VLM in April
I have found running books to be really inspiring. You should check out 'Born To Run'. Amazing book. I then read How to run faster by Julian Goater and have bought a couple more to read too. I am immersing myself in to my new obsession and loving every minute of it 
Are you keeping a blog? If you are not then you might want to consider doing so. It is a great place for you to go back, see what you have achieved, remind you of key lessons you have learned, etc. Don't worry about whether anyone else looks at it or not. Here is a link to mine in case it gives you some ideas:
http://ninjakhan.co.uk/ - just click on the big 'blog' button once you are there.