I'm lost, dont know wtf to do...

Both my kids have so many food allergies. Last year we got allergy testing done for my son(2) because of a severe reaction to eggs, today we got my daughter(4) tested. They have a combined of almost 30 food allergies. They share a few of the same allergies. All the food allergies combined are:

Eggs, oranges, milk, soy, carrots, peas, corn, tree nuts(they have different nut allergies), potato, tomato, tuna, pork, chicken, oat, kidney bean, watermelon, strawberries and fuckin others I'm forgetting...the BIG allergies are peanuts, pistachio, eggs, soy, peas, carrots, corn, and milk.

Almost fucking everything has soy, carrots, peas, corn, and egg/milk.... I just dont know what the fuck to do....I know i need to completely revamp diets just my head is fucking spinning I feel so bad for my kids. I have 0 food allergies and they get a lot from their moms side but still, almost 30 fucking food allergies is insane. Im sure some of them will taper off as they get older but regardless. I already make a lot of meals from scratch but it was catered to my boy. I pretty much have to make 2 separate dinners every night already, I'll do what I have to do this is just so god damn difficult. I just don't know how in the fuck..