Tips for food paranoia?

One of my biggest struggles for the past handful of years has been paranoia about mold or lack of food safety. It's caused me to lose appetite regularly and miss meals, and waste alot of food, which is incredibly humiliating and embarrassing for me, (and makes me feel like a bad person for being wasteful.) I can't handle jokes from others that there's things in my food or imagery that food might be something else, or even slightly off textures or colors. And on a day to day basis, I don't trust sense of smell or dates on it. Even the slightest "offness" detected by me is enough to make me google questions and end up not eating at all. My family and the people I have been talking to at the start of my psychiatric help all only tell me rational things, which truthfully only make me feel unheard and degraded as oppose to reassured or equipped with what to do next. Of course rationality obviously doesn't work for me in these situations. They tell me things like "Best by dates are just lies to make you buy more" or "modern fridges are really good compared to when I was your age" and it is just not helpful. I have started to be more daring and exploratory about my food comfort, eating things I deem "dubious" even though I know it is irrational, to see if it will help me get over it. But the last few times I ended up getting coincidentally sick, so it was a bad week (I drank out of a glass I don't typically use to take my meds and then threw up my meds because I didn't have breakfast with them.. it was the first time I had that reaction to my medication so it's hard not to blame the glass somehow.) Is there anything else I can do or try to help ease the paranoia?