Dairy protein allergy 😭

My little just got diagnosed with a milk protein allergy and that means I have to cut out all dairy or stop breastfeeding 😭😭😭 I don't know how to do this! Everything I've checked in the fridge has dairy or "hidden dairy" as the list my doc gave me called it. I'm going to starve! Someone help! What can I eat?? Oh and my husband was like just eat plain pasta or chicken or salad. My response is a true and genuine fuck you. I'm barely feeding myself as is with the quick things I can grab out of the fridge. How am I supposed to have time to cook pasta or chicken or make a salad??? 😭😭😭😭😭