What Case of Anxiety Do i Have?

if that Question makes Sense like heres the thing im a 19yr male that always had a social prblem & at times i always felt like Lame during high school even when i did have friends that were popular....but i wasnt never really the social type growin up during high school...but yea..like some nights i'll be living the party life like on the weeknd with my brother & his friends...& i'll dance with girls & it seems like when it comes to actually gettin to know them i get shy & like i dont know what to say its not that i dont know what to say like last night one of my guy friends told me he has some women for us & i started thinkin like uh ohh when they get here like i dont want to sit there feeling Akward but its only some times when i feel like that..cause like i hate feeling like an outsider...like i can have plenty of friends..but when i get to know you i have a Cool Goofy Personality...& like right now i live in a Apartment with my Bro, & just now he told me he'll be back hes finna go out with this girl & i feel So Left out like he doesnt want to include me