Starting Over

Ok. I know starting over isn't easy. What I don't know is why I have to start over...where did the motivation go? I had lost over 25lbs and was so ready to lose the last 10. Now, I have close to 15 lbs to lose. It started with missing one day of working out...then another...then another, until I just forgot about that habit of getting out there. Then, I started gaining a little weight, but I thought, "My weight is going to fluctuate by a few pounds each day anyway. next thing I know, I've gained almost 7lbs back! What?!!!!?!?!?!?! I know it seems minor, but for me, that's about 2 months of hard work down the drain. I am starting over though. And I will make it work. I want to lose my last 15lbs so that I can finally feel better about myself.