Goals should be SMART. That is, they should be Specific, Measurable, Attainable, Realistic and Timely. It's admirable to say you want to lose weight but that's too vague. Saying "I want to lose 15 pounds in 3 months" is better. You have set a specific goal that you can measure, is doable and there is a set a time frame in which to reach it. Great start! Now, write that goal down and put it somewhere that you can see it often as a reminder to yourself. This is your long-term goal.