People who sleep less than seven hours a night are more likely to get fat than those who sleep more than seven hours. So make sure you get enough sleep.

Have a simple breakfast, don't overeat at lunch, and have a light and sleepless dinner. You can eat some fruit and make some cereal before going to bed.

After choosing some aerobic exercise, stick to walking, running and swimming. ...

If you can't stick to these, you can learn some simple ways to lose weight. This example of Jin Hong's "Scaring the Body Notes" will tell you.