Hi Michelle,
What plan have you decided on? Low carb or? I agree with Star that it has to be a decision in your head - you need to commit to a plan then stick to it.
It is not easy at first but once you see the weight falling off you will be very motivated to continue.
I know you need to lose a lot of weight and sometimes it seems daunting - so just think of it in smaller increments and make mini-goals for yourself - like 10 lbs by Thanksgiving or 15 lbs by xmas?
You might also want to get a free account on
www.fitday.com to track what you're eating.
Good luck and let us know how you're doing.
Froufy