成功的经历英文简短

Believe I can do it I am a senior school boy.I am very tall.but I am a little fat.So I ususlly got D in the P.E test.1 week ago.wo had a test about run.Because of fat.I got a D again.I were very upset.But my teachet said to me than If I can believe I can do it and hard to practise.I will have a better grades!So I decided to follow my teancher's advice .then I got up early and ran 40minutes every morning .Final in the next run test.I got an A.I were very happy and I found that I become a little thiner!