How to get over my fear?

I am terribly afraid of flies, maggots, larvae, and ants. Whenever I see them I flip out and start screaming and crying. I am afraid of them because once when I was younger I was hiding under a bed during hide and go seek and I realized that there was a dead bird my cat had brought in and all of those things were on me and near me. That traumatized me. Now if any of those things touch me I will legit start crying and freak out. I am more afraid of those things then ANYTHING else, like anything. Those are my only fears and they terrify me so much! How can I get over this fear? I have to be able to stay in a room even if there are flies or those other bugs in it. Please help?