Homework problem:anybody can help me to check through this short paragraph n point out the errors ?

This is an article i found in internet written by a person called Rabbi Tom Meyer,titled “have and have not”. It is talking about feeling happy and contented of what we have now even though there are something that we do not have. the author wants the readers to make out two lists A and B which are The things you think you need in order to be happy and The blessings you already have respectively. For example , let say , in list A you put one million dollar and u put eyes in list B. try to think , you would rather have one million dollar or a paur of eyes? of course we want a pair of eyes!this shown that the list of what you have is much greater than the list of what you think you need in order to be happy. Rabbi Meyer thinks that in the present society , we always focus on what we do not have and seldom paying attention to what we have.like some people, they spend their whole life to get what they think will make them happy and they ignored what they already have,eventually they end up regretted . What he try to tell us is that learn to notice the wonderful blessings we have beside striving for things we do not have. Finally , this is a sentence which i think is meaningful.Strive for all you want, also take pleasure in what's in your backyard already.