Is it normal to feel so miserable about a job so early on?

Hi, basically 3 months ago I started a new job in management accounting, which was an “entry” level role and it is my first full time role since graduating in July. Through college and uni I spent time working in hospitality working in events which i always quite enjoyed overall with the odd shift of “god i hate it here” but i didnt really. However, since starting this new job i’ve just hated pretty much every single day here. I don’t get any enjoyment out of it at all and haven’t had any enjoyment out of learning this despite it being new. I come in and the first thing i’m thinking about it leaving, which is something i had in my part time work but never ever to this extreme. To say it’s an entry role I feel like the training has been pretty mediocre at best, with me being shown stuff in the first week or so, but from then on it’s been very much “here you go if you get stuck just ask” so I’m managing my overall tasks but as soon as it throws a curveball i just have no idea what i have to do etc. The last three months have just made me constantly want to break down and cry, and i dont know if that’s the job, seasonal depression, grieving the freedom i had at uni, or all of them combined and fuelling each other. I feel so stuck because i know this is a career that if i follow through and do the extra 3/4 years of exams i can make good money, but then the thought of actually doing that just doesn’t excite me in the slightest. I know that I should give it at least another 3 months before i reassess but the last 3 months have just felt so miserable. I’ve just turned 23 as of a week ago so i know i still have plenty of time to make career choices and changes but i’m trying to work out if the way i’m feeling is just a new job thing, adjusting to full time in an office, or if the job just isn’t for me. For the record, i didn’t aspire to be in this career throughout uni or anything, tbh i wanted to actively avoid it after covering it for a module at uni, but there wasn’t a lot available in the job market when i was applying so i was just stabbing in the dark because having a full time job was better and more financially viable than not having one.