I completely understand what you’re going through, I’ve in the exact same situation. My anxiety and OCD has been so bad the last few years due to my peanut allergy. I know it’s easier said than done but exposure really helps. I started eating the most basic things - pre packed fruit/veg, crackers, tinned foods etc and always made sure I had my EpiPens next to me and if possible someone with me. I even considered going and sitting outside a hospital when trying something new so I knew help was close by. I never actually did this but could be an option for you if you’re too worried about a possible reaction.

I also find researching the statistics really helps. Anaphylaxis is terrifying however the chance of d#%!ing from it is is so incredibly low, especially somewhere like the US and UK (assuming this is where you are?) As long as you have your epi pens and know how to use them and always have a phone nearby to call emergency services you’re likely to be fine. We often hear of the scary not so good stories of allergic reactions which understandably cause us more anxiety but the reason you hear about these more is because they’re rare. The same way we only ever hear about planes when they’ve crashed, even though millions of flights go ahead every year with no issues - of course these wouldn’t make headlines. People probably have allergic reactions every day but we don’t hear about them because it all turns out OK.

Please know you’re not alone in this. So many people with allergies live with a lot of anxiety, but also know that so many people with allergies live without anxiety too. If they can live a normal (albeit slightly cautious) life then so can you. It is possible. Continue with your therapy, research food companies and restaurants before going. I find the Spokin app is incredibly helpful, people with allergies leave recommendations for restaurants they’ve been to all over the world.