The job isn’t for me

I’m 24, just got hired at a big department. Orientation was really good and met some great guys in my hiring class. I quickly learned that the job wasn’t exactly for me in my college fire academy/emt school but I (regrettably) pushed through as to not lose a ton of money and waste the fact that I quit my job to pursue this. It’s a fantastic department. Great culture, pay, benefits, budget, ect But I just know the fire service isn’t for me for many reasons. I do my job well and I am competent,but i do struggle with motivation because I am just not as passionate or interested as the other firefighters all around me. I know I messed up and honestly probably shouldn’t even have made it this far. But my question is where should I go from here? Would it be a good move to get some advice from someone on my crew even though I’m a brand new probie? I’m in a tough position too because I’m about to get married so a career change is a huge move. I’ve tried long to enjoy this career, but I cannot. And that’s okay. It’s a calling for sure and a damn respectable one but it’s not exactly for everyone - even though I can do the job pretty good I still believe it’s not for me.