以“Yesterday、Today、Tomorrow”为主题的英文演讲稿、、、求回答~

Yesterday's Tomorrow is Today,Tomorrow's Yesterday is Today,Today ,as a bridge,is more important,so Do Cherish Today!
Today is the first day of new week.Not a good begin I think ,I lose something and feel so sad,I know I am growing up.Never look back ,cherish what I have now and make my future brighter!I should learnt how to live how to deal with thing and learn to do everything as a infant.The world changes so quickly!People change so quickly,just find I am so puerility that didn't know how to deal well with the relationship between people and made myself so hard.I think I am a simple boy but frankly I find I think too much and most of the thing I thought will never happen.
Anyway!Don't worry Be happy!You have so many great friends!Life is so beautiful!The world is waiting for you !Get it !