I am glad you posted. That is a good step in getting really motivated.
I have a few tricks that I use:
I cannot live in terms of "forever". I know that I can do ANYTHING for a short period of time. Just give it a two week time limit and see what happens. You can do anything for two weeks.
People even put up with visits for their in-laws for that long!
Get rid of all the crap food in the house. If it isn't there-you won't eat it. It is much more of a pain for me to have to go to the store than it is to eat something low carb I already have.
Don't let myself get hungry. I am not saying gorge yourself all the time-but I know "cheat" thoughts only occur when I allow myself to get too hungry. Then I want french fries.
As soon as I eat-that feeling goes away.
Make myself accountable to someone else. Frankly, sometimes I have to have a healthy dose of fear to keep me in line when I am changing a bad habit. I would not know how to tell my parents that I went back to eating the old way-that I gave up. Especially since they both are successfully low carbing. Since I am a terrible liar-this will sometimes keep me straight when nothing else will. I haven't had to use this trick on the woe so far-but I have used it in the past with other things. I have a friend who reports to me on her eating. Helps to keep her honest.
Read success stories. They REALLY keep me motived.
Make connections on this forum. Again-that helps to keep me accountable. There are people here who care. Finding this forum has been one of the best things about doing this woe. It helps to be in the middle of a group of people that are all doing the same thing.