Extra weight

Well, for at least four years now I have some extra weight that I can't get rid of. I tried different approaches, but in the end my scales show the same number! And to tell you the truth it is very annoying. I think there is two things which are not allowing me to reach my goal:

• Lack of motivation
• Lack of strong will

I don't know what to do with it. Motivation to look good doesn't work somehow and strong will just won't appear by itself. So, what should I do? I am sick and tired of hearing people say that I am pregnant. It is insulting.