How To Tell Communication That Affects The Parent-Child Relationship?

The child would absorb all the information into their mind without filtering. 
Your kids heard the words from you get soaked into their minds like water into the sponge. Words carry weights. Motherhood life is so much stress to feel something like riding a plane to go through turbulence from time to time. How to handle stress under pressure? Perhaps, there are two ways:

1. Amplify your fear of the negative outcome
2. Working on the real problem

The feeling of imminent fear escalates with words and action. We amplify the fear of the possible negative outcome.  

“Don’t you know this is the biggest event of the year? How dare you have badly stained the terrible dirt on your dress to spoil the night?”
 
“The examination is coming. If you fail, you’ve to change school. I demand you to practice the whole mock papers and study overtime doing it. Call in your Dad, right now!”

It is not the biggest event of the year. Some dirt on the dress would not spoil the night. Failing the exam won’t require changing school. You only feel that way and turn the worry into components of action you’re taking.

Instead, what if working on the real problem.  
 
“The examination is coming. Would you spend more time studying so that I know you did your very best?”
 
The kids will gain more confidence and be calm to deal with the problem.