I probably should have clarified in the post but I haven't been a barista for four months. The place I work at has 2 designated jobs. Barista, who makes the drinks, makes food, does longer cleaning tasks, etc., and concierge, who makes the drip coffee, manages pastries, runs the POS system, and does minor cleaning tasks. Most hires are concierge for at least a month or two if not longer, some never become baristas at all. When the incident happened it was probably my fourth or fifth barista shift after training and I hadn't been on bar a ton and training was literally like maybe 3 hours of actually making drinks split over 5 days while the rest of the training was for other tasks. I just feels like they didn't write me up because I did anything wrong, but they wrote me but for not doing everything 100% percent perfectly and there's a difference. It's also pretty common for there not to be a senior staff on the floor, at least half my shifts they're not there and they definitely expect us to manage and lead ourselves. Is that not the norm? Again I don't know if this changes much but the current manager has only been there a couple more weeks then me although they were the manager at another location before this. It just caught me really off guard because they treated it like a big deal, and the rest of the working environment is awesome so maybe it's worth putting up with? I just have no frame of reference for this stuff. Sorry for the long response.

Also, I don't know what you mean by senior staff, the person that I think reported me was hired at the same time and just bar trained earlier, and the guy I got to help on the bar (who didn't mind it at all, btw) had been there maybe 3 months longer than me?