Get an exercise buddy at the gym. Bring a spouse, friend or make a friend at the gym. They were motivate you on the days you don't feel motivated to go.
I saw this on the local news and went to the website to download.
Besides setting a goal for weight , it is important to set other goals . Ask yourself how will your life be different at this lower weight. If you don't hit that exact weight goal but you reach the other goals you are a rich man.