I'm 18. I've noticed I'm always looking for validation and it seems that things I do, I do for other people to react. I am always too conscious about my actions, even about simple things like walking in a busy street, being at a club, riding a bus...(basically any social setting)

I really can't live like that, I just want to not give a fuck and be myself all the time, so, do you have any tips about this specific problem?