dentist +emetaphobia

hello i struggle with ocd and everything surrounding that including emetaphobia which is the biggest cause of my agoraphobia. i’m also chronically nauseous which doesn’t help anything. abt a year and a half ago i noticed a slight hole in my tooth and knew i needed to see the dentist. after six months i finally made an appointment & found out i had 7 cavities at the time. since that point i have had 4 of them filled (i could have more at this point from avoiding it for so long) anyways the appointment was as you could expect, panic attack the whole time, deep breathing, nails digging into my palm. i almost had to ask him to stop at one point because i was certain i would vomit on him. i was able to get through the four fillings & when they asked for me to make another appointment to knock out one or two more i said i would call to schedule. it’s now been six months since that point and i have extreme tooth pain when eating anything cold or sweet. i know the cavities are getting worse or potentially spreading but my last appointments were so miserable (to no fault of my dentist hes amazing i quite litterally have anxiety over it for no reason) and i cant get myself to make another appointment even tho the pain and anxiety surrounding my teeth rotting is getting worse. if anyone has any advice id appreciate it. i have pots and a bad relationship with food as well which causes me to snack late at night after brushing my teeth which i believe is half of the reason behind having so many cavities. i just badly need to get them filled but im so so scared