Hi Crazyangel, have you got a new goal to look forward to? I find once I reach a goal, if I don't have another one to aim for immediately, I lose the reason to lose weight and go back to scoffing. Once you get on that treadmill it's sooo difficult to motivate yourself to get back on...but you are still on your journey until you decide to give up. Don't give up. Get back on track, do what you can until your head 'clicks' and keep going. Find yourself two new goals, one to aim for now to get rid of the weight gain and then one a few months later so as you are reaching one goal there is another to focus on straight behind it. Icemoose gave me this idea and it is really helpful to me, I hope it helps you too.
Good luck - Joe