Why is it so important for you to be cool? What are you afraid of? Who?
Why are you so afraid of not being cool?
So what? Follow your path/story. Listen to the voice inside of you. Your voice. Not voice of the others.
You will make some mistakes. It is part of growing up.
You will look ridiculous sometimes. :) That is ok too. :) It happens to all of us from time to time. :)