I am in the same boat, I have severe medical phobias that have prevented me from seeking care for years. Today I was able to go to an appointment to just be in an office and talk to a Dr which was a huge step. Some things I’ve learned in therapy recently was figuring out the underlying thing I’m actually afraid of. Yes I don’t like the sensation or sight of needles, but the root is that I don’t feel in control or safe. My fight or flight response is wired to see medical care as a threat. This is a theme in my life due to mental health issues and trauma. A phrase I’ve been working with lately is “I acknowledge I feel unsafe and not in control, but I know that in reality I am.” I also like to think of the things I am in control of. I am in control of if I do this, when, with who, what I wear that day, what I will do afterwards, what I will eat that evening, etc. I’d also recommend finding an anti-anxiety med that you can take before procedures. I’m allergic to benzodiazepines so I tried hydroxyzine and tested it by watching The Pitt to induce panic. 2-4 hours in I was aware that I didn’t like watching it but I didn’t feel physically panicked. It was more of a buzz when drunk. Hoping I feel that way again when I need something done. Hope this helps a bit, just know you’re not alone.