Congrats Mike! That's great progress! I'm 6' 245lbs and i've hit that point as well, where it's just what am I doing???? I've joined a gym and am starting to go there 3-4 times a week. It's helped immensly however, I need to cut out beer/liqour, carbs, sugar, etc. and as well as start to eat a good breakfast, less lunch/dinner and more snacks and water. Like you, I have signed myself up for a 5k that is in a month... ha. I have been trying to train for that hardcore, but the problem is the workouts get so methodically boring, and it's tough to try to switch up the workout. Mike, It's an inspiration to me (and i'm sure many others) that you are doing this. I will keep checking back and wish you the best of luck. seriously. I'm on my way to try towards the exact same goal.