If going Paleo is what it takes, more power to you. But, just by reading your first blog entry, it seems that your real issue is the fact that you are sedentary, and eat like ****.
Going Paleo, may be what makes you consider what you put into your mouth, and I hope it works. But, really all you need to do, is stop eating like ****, and start being active. A lot of us here work sedentary jobs, with snack foods everywhere, but aren't overweight. Get in the gym. Start lifting weights. Start doing cardio. You are the only one who believes your excuses.
I really hope to follow a series of inspiring changes for you.