For me, life is about living. You only get this life once. Not twice. Not three times. Just once.
That means if there is a guy or girl you like and you are wanting to say hi: just do it. If there's a crush and you think they're single, go and tell them how you feel.
What's the worst that can happen? You may get rejected but there will be somebody else!
You could get accepted and then life is better :)
YOLO! Yes, it's true! Accepted or rejected :) Only ONE outcome.
All the nerves and fear that exists is only in your mind. You think "what if he will do X or she will do X". All these are just thoughts. You do not know unless you GO!
As long as it is legal and as long as it does not harm someone else: do it!
Plus... cut out the negative people out of your life!!! No matter how long they have been there. If you knew them for 5 minutes, 5 years and you think they are bad... GET THEM OUT!!!
Just go! Just be! Don't over analyze stuff. It's all in your head.
Do what you want to do. Be who you want to be. Do what you want to do. If you like to wear clothes that are out of the ordinary, do it. Who cares what other people think? Some will stare, some won't care, some will be rude. But hey, that's the way the world is!!!