I've been on a journey to learn how to not give a fuck about what people think of me, mainly to help me approach more girls without anxiety. I have a 70 year old roommate who lives next to me. This guy is the definition of someone who truly doesn't give a fuck about what people think of him. For example, he's sitting 5 feet away from me listening to some old choir songs while singing along with it... and he's a terrible singer. He doesn't give a fuck that I'm 5 feet away from him listening to him. Thinking about it now, I guess most old people don't give a fuck what people think about them (just think of all the old grandpas walking around naked in the gym locker). I think we all need to be like this if we want to get better at approaching. For example, I hesitate a lot when approaching a girl in public. Thoughts like, "What would she think of me?", "What would other people on the street think of me?", and etc. comes to mind. I seriously have to learn not to give a fuck what other people think and do what I want to do.