I think you need to do something totally out of your comfort zone so that you can confront your issues with being overweight. I think that you should join weight watchers or a similar group where you can gain confidence by being supported by others who have the same goals as you. Also, they will teach you properly how to eat better, exercise better etc. Money may be a problem, but ask your mom about that maybe she would be willing to help? Or maybe a relative, aunty/uncle/grandparent could help you with financial side of it. I hope this is a 'sincere' reply for you!