Don’t give them so much power. Don’t underestimate the power of ignoring! ~ Jing Luo
Deciding what there opinion of me is without asking them what it is.
It can totally destroy your perspective of yourself and for some people they destroy others so they can feel superior!
Stop thinking too much 
Learn to say No without explaining yourself 
Don’t worry about the things in you have no control over 
Speak only when you are sure