Anxiety not stopping

I don't know what to do anymore, the fear of psychosis and schizophrenia is so bad in so hyper aware of everything I hear and everything I see, I've always had eye floaters now I convince myself that it's really me hallucinating, I've always had tinnitus but now I'm convinced it means I'm going to go crazy soon, I can't sit in quiet because all I'm focusing on is what I'm hearing, and searching for any sounds I can't distinguish, when there's background noise I get so anxious if I think I heard something but im not sure I did or I'm just anxious, I'm terrified I'll start having delusions and sometimes my brain confuses some sounds for other sounds for example say I'm hyper focused and I breathe and my nose makes a whistling sound my mind interprets it as a scream and I freak out thinking I'm hallucinating only to focus closer and realize it's my own breathing, earlier I was so anxious that I couldnt tell if I had an intrusive thought or heard something, I don't know how to make it stop, I've been through this theme before I just forgot how hard it was I'm having a panic attack please help

6 months ago I had a severe panic attack and it’s changed my life. Scared of 99% of foods, can’t take meds out of fear, been hospitalized a few times cause of blood sugar drops and other health scares due to poor eating. I’m constantly scanning my body finding any little thing that’s uncomfortable and then fixate and panic over the smallest things. Whether be a smell I’m unfamiliar with, a weird sensation in my arm literally anything freaks me out….. who has had success with exposure or has dealt with similar issues. I feel like I’m unintentionally slowly killing myself but I’m too scared for meds and therapy doesn’t seem to make much of a dent right now. Please share some success stories I need hope.

I recently went through complete burnout I had panic attacks for over a month…brutal…then they manifested into the body. I’ve been constantly looping on symptoms and the tension in my neck and throat is pretty bad. It’s been scary. I’ve been in a chronic state of high stress for some time and also have ptsd and cptsd. I’ve considered residential since I left the job. Plus my son passed away recently. I’m down in San Diego right now staying with a friend but from NorCal. I don’t know why to do. Guidance would be appreciated.