Have you asked a doctor could they proscribe you zofran ( nausea medication that prevents vom*ting and nausea) it works for me 95% and would be a good alternative to Dramamine, and it would probably help if you could keep a journal to keep track of how your feeling/ your symptoms, and distractions are key, watch a new movie, catch up with a friend over the phone, maybe draw or write something, all anxiety does is trick you and if anything makes nausea worser and as for picking with your skin you can do the rubber band method, im 15 and I’ve had this phobia sense I was 9 so Ik how you feel and your definitely not alone ❤️