What should i do?

So me and my younger bro went in to do our first job interview in a burger restaurant place (Not McDonald's something family owned I think and more trendy kinda.) and then training for 5-ish hours after and we stood on our feet all the time forming burgers and such...and obviously in a way it sucked but I liked the experience and I actually got out there and confronted my anxiety and stuff...but my brother now says he does not want to go back. I'll admit we were kind of a bit slow making all the tray fills they wanted but we were doing kind of good together and it wasent super boring cause I talked to him about lots of stuff like video games, cars, current events, made jokes....but now I'm ment to go alone. (Let me be the 1st to say, no I wasn't the one who wanted to work there I'm just a socially anxious person and my older brother imposed the job on me so I could have one and Start out and stuff...) and there isn't really anyone to talk to in there, it'd just be me making these burgers in silence or something...because like you know the restaurant is ethnicllay owned also so it's like people who speak a different language in the kitchen...and I'm fine with that it's just my concern is I won't have anyone to chat with anymore...

And that just makes me feel sad thinking about it...