Self-confidence doesn’t require tailored expressions at all times; instead, it expresses itself in different interesting ways.
It's okay to disagree with the thoughts or opinions expressed by other people. That doesn't give you the right to deny any sense they might make. Nor does it give you a right to accuse someone of poorly expressing their beliefs just because you don't like what they are saying. Learn to recognize good writing when you read it, even if it means overcoming your pride and opening your mind beyond what is comfortable.
What word or expression do you most overuse? Re-reading a collection of my stuff, I was rather startled to find that it was 'perhaps.
I make a lot of expressions constantly. I'm animated.