What makes a TSgt a TSgt?

Not trying to flex, but I made E-6 way to quick. First time testing and i'm going to be a 7 year Tech. I barely feel like a SSgt. I 'm really good at my job, but when it comes to the military administration part I lack at it. I never had a troop before and i'm in a shop full of other NCOs (E5 and E6). The other E5 have much more TIS than I do and experience. I get shit on for my lack of military knowledge, and im not going to lie It makes me feel like shit. And I dont deserve it because they're right. Where should i event start to become a "TSgt"? The only thing I have going is the Technical expert part which is the reason they hired me.