What will your weight loss plan be? I have found that Atkins with an hour walking every day has really done it from me...and water water water!
Take your diet one day at a time. When you feel tempted to cheat, vow to make it to the end of the day! Then start over again in the morning...
You have started a life changing event, realize that there will be ups and downs, when you feel down, get on here, there is always someones story to read or post and get the encouragement you need, I've got 70 lbs to go, but by gosh I've lost 52 and you and I both will make it!
Go for it!