Got hired by a local family-owned AYCE sushi restaurant. The manager (let's call her V) is the owner's daughter.

The owner is always saying "good job" and "thank you" to me, maintaining our work relationship under good standing.

1. Earlier in the month, a customer sitting at the bar asked V if they got a newbie server working. She replies, "Yes, we're all worried about him."
2. The following day, I overheard V speaking with sushi chefs and another server that "I'm going to be serving by myself / the only server" or something to that extent, when I was scheduled to work as well, all within earshot.
3. A week later, another server is dropping food off at a table in the corner of the restaurant, and I'm behind him stating "behind you," but he didn't hear and turned around, knocking down a roll onto the ground and saying, that he'll clean it. One of the sushi chefs yelled across the restaurant told me not to pick up any more sushi from the bar anymore and do something else.
4. I brought this to the attention of the former manager, who is now working at their sister restaurant, and she informed the current manager, who said we could speak about the issues the following day I worked with her.

Sat down with V the following day after her shift.

Said she'd like to record the audio for the owner to hear, but I knew it was bullshit. She was trying to cover her own ass and the business.

She unempathetically apologized for her behavior. She said she regrets saying or doing anything that would hurt my feelings and for being unprofessional, and that the sushi chef had no power or authority to tell me to stop serving, stating that he'd have him apologize to me (which he hasn't since for over a week now).

I don't know what to do because I have problems remembering items off their menu when serving to tables and get off-task when another server or customers ask me for things or tasks to help them with. To combat my cognitive issues, I've started using scrap paper to jot down what tables order and also made a Quizlet to study their sushi rolls. While it's gotten better, I am getting accused and scapegoated for any mistakes I make while on the clock.

For example, a table paid $100 in cash, rest with a card, and the head server came up to me and accused me of undercharging him $100 simply because I put the table in the POS. After a few minutes of thinking how this could've happened as I didn't cash that table out specifically, it turned out another server cashed them out and didn't write "PAID $100 CASH" or something similar to let other staff know.

I'm now the automatic scapegoat if something goes wrong with their front-of-house services, and while I do own up to my mistakes and have been improving, I just don't know what to do as this is my only source of income.

I have prior knowledge of digital marketing and was studying for my Comp TIAA A core exam before this job, but I have lost focus as they will start making me work 4 to 5 days a week now.

Any advice for others that have been in this situation would be helpful. Do I need to disclose that I have a disability? Or are there laws with ADA that would keep the restaurant in line?