I've been on a festival yesterday with 2 friends who just don't give a fuck, and approach EVERYONE they see on the street. EVERY approach they had fun and just straight up self amusing.. straight up LIVING. I was all in my head and was just standing in the back.. Had approach anxiety all night and couldn't talk to girls even when they were beside me (when my friends approached).

I want to stop giving a fuck, and being socially free to do whatever the fuck I want to do, I want to be outcome independent and just have fun when approaching.

I'm 18 years old now and have 4 months before I go to the army. I want to change. Right now I'm this shy guy, who in a strange environment won't talk and is closed in himself. I TRULY WANT TO CHANGE. I want to be talkative, charismatic and energetic. I'm lifting, doing NoFap, cold showers etc.. but this stuff doesn't cut it. I have no idea What to do!

please help me :)