To hear that you will fail, “that painting is awful”, “you can't sing”! 
Or
 “you should be in a different type of job or field!” 

For most of us that can be rude and discouraging. 


To be uncertain if your best is enough and sustainable 

can cause you to wonder if what naysayers are saying is true. 


So, you start believing that you will be wasting your time

and before you try it, you have already set

your mind to have little or no effort in it. 

however....