Think about how you felt when you had your first loss. And your second. Now think forward to christmas this year, when you want to get to goal. You set that goal for a reason, I dont know what your reason was, but you do. Focus on it. Think about WHY you wanted to do this. Write a list of your reasons for losing weight. When you start to waver, look at it. Think about how when you get to goal, you can take that list and rip it into tiny pieces, and be proud of yourself because you achieved what you set out to do.
And then pick yourself up and start over. You CAN do this.