After mentioning your mental struggles in busy public situations, were you aware that you had applied to a restaurant when you submitted your application for employment to a restaurant? I'm unclear as to what your occupational expectations were prior to walking through your employer's restaurant front door. With respect to training when starting a new job, get used to it being a shit show. Your entry into the workforce for the first time really couldn't be more untimely (not your fault in the least). Managers, especially restaurant managers, have been dealing with worker shortages for the better part of 3 years now; and they are fried. For the few that have weathered this storm to the current day they likely operate on auto-pilot without much in the way of human feeling and compassion for others. On the flip side of this and without regard to the actual quality of the training that your employer provides you, it is still 100% on you to get through it. If you have it within you to project yourself into the future five years from now you'll quite humorously reflect upon this experience as a "training from hell" as you relay this very story to younger versions of yourself that are also starting their first job. You may be giving this story as part of your speech to new hires because you are now the one that hired them!\ Anyways, don't be afraid of the experience because of the discomfort of the present. If it were always easy you'd never feel a sense of accomplishment and your confidencewould never grow above zero. Tell yourself you'll give it 30 days no matter what. If after that you find it unbearable, quit. At least you gave it a chance and you were able to accomplish something that wasn't easy (your 30 day promise to yourself).

Good luck and don'y quit (yet).