Well for everyone there is a different answer and I don't think anyone can convince you to start. That really is something you have to dig for and discover for yourself.
For myself, I had just had enough. I really could not take it anymore. I was fat, miserable, unhappy, terribly, terribly inactive, terrified of all the added health risks I was setting myself up for. I was absolutely disgusted and fed up with the clothing situation and how I looked and how I felt.
Basically just sick and tired of letting life pass me by. I was not being an active participant in life. I was not living the best life that I could,
not even close and that was an absolute shame. I finally figured out that I didn't have to live that way. I just decided I didn't want to be fat anymore.
I know that sounds so simple, but that is exactly what happened. It all finally "clicked" for me. If I didn't want to be fat, well, I didn't have to be. There is so much in life we don't have any control over what so ever. But our weight is certainly not one of them.
Good luck and Jay's right - you most certainly CAN do this. It is a very doable thing. Not always easy, but very, very, VERY
worth it. I wouldn't go back to fat, morbidly obese me for anything in the world. I don't have to - it's up to me. The rewards far outweigh any so called sacrifices by miles and miles and miles.