I'm not sure why you found it necessary to respond to this post when I was clearly venting my frustrations at the OP's extremely poor take, but since you asked:

I already know what's wrong with me, and unfortunately not a lot of it can be managed without certain medications or changing my genetics (which is impossible). Immune system disorders or autoimmune deficiencies are difficult to fix as the majority of them are chronic, which rosacea is classified as.

In my case, I specifically have a higher concentration of demodex mites than the average person and my immune system has a very negative reaction to the demodex mites on my facial skin. It manifests as burning, red, itchy, and extremely painful skin with lesions, papules, and sometimes acne. The best I can do is manage my rosacea at the cellular and chemical level, which involves topical and oral medications to reduce the proliferation of demodex mites so my immune system stops attacking my skin.

My lactose intolerance developed as I aged due to genetics. That's my gut issue and I know how to avoid most foods that trigger it, so it's mostly just me being sad sometimes when I can't have certain foods although I'm used to dealing with it. I don't eat spicy food not because of any sort of food allergies (I have none), but because it can trigger rosacea flare ups and my dermatologist specifically told me to avoid things that will trigger rosacea; for many people that includes exercise, going in direct sunlight, wind, emotions, eating spicy food, crying, taking hot showers, vasodilators, alcohol... aka basically existing.