Help me

I got stuck with 92G. I’ve worked in food service before and I’ve absolutely hated it. I can’t even cook!!! My recruiter said my title would be a “food service specialist” and I won’t be the one cooking, I’d be “supervising” but I’m having a hard time believing that. I haven’t signed my contract yet. I go back to MEPS on Wednesday. Is it too late to change? I wanted a 68G but he said it wasn’t available in the system. Please, I’m already regretting my decision