You can go for a walk in a week, that is, you can walk at the usual walking speed 1 hour. Since you say that learning is very important, you can listen to English while walking, or you can use a walkman or a tape recorder, then you can't learn to lose weight while walking, and then you must eat! Some people say that eating nothing but fruit can make you lose a lot of weight, which is wrong. I have read this book named & gt. It says that people who don't eat a day have about the same calories as those who eat on time, as long as you control your food intake. You can have a full breakfast, but not too full. I estimate this by myself. Eat a lot of fish, vegetables and beans for lunch, and eat 6-7 times less for dinner. Don't eat before going to bed, if you have time to read.