I’ve been very over weight in the past, but years ago I started with a 20 minute walk, that over time turned into a run. 80 pounds later I ran my first marathon. I really want to encourage you to not give up. I believe like you that over eating is indeed an addiction. If not for the support of an office mate at the time I’m sure I would have just given up. The weather is going to be getting nice really soon. Maybe you could walk a couple blocks?