@kasra1985,
Sorry but there are far too many grammatical problems to go through them all. Also this forum is not essay writing service; however, we do like to help people who need a little grammar guidance .
**********************************************************************
I'll add to Jespah's excellent advice: learn what a complete sentence is (subject, verb and object). Do not use sentence fragments.
Many times you've used wrong tenses.
Many times you have used plural instead of singular or vice versa.
A paragraph may be of any length but would contain similar thoughts/themes/topics. A suggested minimum length is 3 related sentences, as an example.