Emetophobia

Not really sure what community to put this in!

For my past few periods I've been getting really nauseous and queasy on the first day, but I have severe emetophobia and just the thought of throwing up or being nauseous makes me so anxious. My friend has such bad nausea she throws up on her first day and I'm so terrified that's what's going to happen to me. The emetophobia is genuinely taking over me to the point where I won't eat anything new and overcook my food to make sure I won't get sick. Is anyone else dealing with this? What have you done to help with it? Thanks!! Any feedback or advice would be so helpful.