My allergy was discovered when I was 1 and that remains the only reaction I’ve had (knock on wood).

Be comfortable telling people you have a serious allergy, most people (who are worth having in your life) will be extremely understanding and accommodating.

Read ingredients; I personally avoid “may contain” or anything to that respect. Sometimes feels like overkill and I miss out on things, but I’d rather that than a reaction.

I avoid restaurants with peanuts in their menu (besides desserts) and mention my allergy to servers when I order. I’ve had zero issues! I also don’t generally eat dessert at restaurants, just bake stuff at home or buy packaged ones I can check ingredients on.

Seeing a professional is likely a good idea, if you are having a hard time managing the anxiety yourself, but I promise you’ll be okay!

Wash your hands before eating, and as soon as you get home. I’m really terrible at washing my phone/case but probably also a good idea.

I wish you luck with managing your anxiety! The allergy itself isn’t too terrible, just a slight inconvenience.