My workplace (restaurant) is sketchy

I've working at this bistro for a while now, I'm a bartender/barista, when i applied to the job i got told that this place was always full of people and that they made a bunch of money, but 4 months since i got hired i've barely seen any people come in, The place is pretty hidden and ivé noticed that they're letting the food rot and the produce is barely eatable. I worry only about my produce for the bar, Citrus and Botanics, but yesterday i went back to look for basil and i saw almost every veggie Rotten and covered in that white mold, I get easily disgusted so i felt the vomit coming in and i ran away from the storage room. I asked the chef and he just said that i shouldn't worry and that i can't talk about it. 

Sometimes my boss gets angry when i propose ideas to promote the place and get people coming in, since i'm young i know how to handle social media and i even offered to make a tiktok account to promote the place but i was met with a pretty harsh ''No''. Apart from that, The other workers who are pretty older than me talk a lot about ''how much they made'' and mention upwards to 3 millions which confuse me since we really barely get any people daily.

I have a hearing problem, wich makes me more sensitive to sound therefore i hear louder, My boss and the main chef don't know this so they think that talking a few tables away from the bar is enough for me to not hear their conversations, I've heard a lot of weird sutff but the main one is that The chef somehow always says he's ''unenployed'' to avoid paying taxes, and that he has been doing that since they opened the establishment. 

All of these things make me feel like i'm in something sketchy, There are certain ''rooms'' i'm not allowed to go in but all the others are, Once i was looking for a Tool to bend a piece of metal and when i tried to enter a room that's located just right the bsathroom (}i thought it was like another storage room) one of the waitresses stopped me and said ''Please don't go in, i'll get you one'', The wording was so fucking strange, Like the please was like really weird.

i should mention aswell that the kitchen is FILLED with cockroaches and mice, Once i was there because i was making a new fruit syrup and i saw cockroaches coming out of the kitchen burners and scatter, as well as some mice under one of the ovens (including feecees). 

I will be quitting soon, i just cant stay here, but i need to know i'm not insane and that this DOES sound sketchy to others, please i just need reassurance that i'm not exagerating or going insane.