IN DILLEMMA WITH , "NO"

"NO", too easy to write yet too difficult to say. There are so many problems in our lives and one of them is the dillemma of saying NO.  It is just a word but powerful enough to pressurise yourself and might set your heart free once you say it. 

We are social animal and we care for each other because of the group we belong to.  We cannot just say NO and move on because that will carry a burden of guilt. This is given to us as a child and we carry it in adulthood. "NO" makes us feel negativity because we don't want to be left out from our group. We theoratically conclude the practical outcome before expressing the desire to say NO.

What if you can say , NO, even for a day? What if you can say NO and propose your desire to the opposite?