I am 19 years old and live a pretty good life. I am outgoing, humors, and have been together with my girl for 6 months now. My life has improved hugely since my childhood and I am really happy that things are finally moving my way after allot of effort.

However I have a big problem which is that I loose my shit when I am around people that I look up too, especially when I am around older guys.

My brother who is 9 years older then me is the type of man I would like to become someday. He is very red-pill in the way that he wont take bullshit from anyone, speaks coherently and confidently and has an endless list of friends he can hang out with. When his girl of 4 years dumped him, he brushed it of like it was nothing and proceeds to sleep with like 20 girls over the next two years until now because he is dating a model.

If I am having any trouble with something, I can always go to him and ask for help, but the problem is that whenever I hang out with him it feels like I have nothing to offer. I get really nervous around him and turn weird. Like when I am speaking with him for some reason I start speaking in a technical way and turn completely dry in humor which is the exact opposite of who I am. As a result I turn into a beta bitch around him and I really hate that because I want to make him proud.

What do I do?

TL;DR: Pretty confident guy, but turn into a beta bitch when I am with men I'd like to become.