I need motivation!

Fat, Fat, Fat! Looking at the mirror again and again, just hated the way I am now!
I really need execise..but I dun have the motivation to continuously do it! I always say I must go for jogging later, but in the end, I was found lying in bed watching TV!
How?? How to make oneself be motivated to do something? Hmm, will $$ help me?? Sign up for some areobic or other classes. I bet no matter how, I'll drag myself to be there cause I have already paid for the lesson. It'll be a waste of $ if I did not attend. How abt that??
Execise, Execise, Execise! To lose at least 3-4kg, tone up my flabby arms, flatten my tummy...that'll be my latest goal now. :(