It seems like you are a home body. If you never do new things you cannot meet new people. I hate to say it like that but it is true. Im very shy myself and I find it hard to expand to find new people. But I can honestly say once I get to know someone new it was all worth it or at least you have something to laugh about. I know losing weight is and can be difficult but I would join weight watchers- I go all of the time. You have support of others and get to be around women. It will boost your confinence and make women that you have been around even at work notice you. That is where I would start - don't hop into a relationship unless you feel good in your own skin.