Nice to meet you to and I hope you find it comfortable here there is many good people here. I am sorry you have anxiety and have to deal with the agoraphobia that comes with it. I understand how it feels at one time I had it myself. My cure was to stop drinking anything with caffeine. Sense its a drug it affects the body and its very understood caffeine makes anxiety worst even. Its also been known to be the source cause of anxiety in some cases.
So if you drink alot of coffee or more then one soda a day. Cutting back will help extemely don't quit on it cold turkey it will lead to caffeine withdrawal. That will only cause your anxiety and other things to get worse. By cutting it down in half every week slowly the body will adapt to those levels and won't be has affected nor addicted to caffeine. Keep going forward and do all the postive things you can it will help with alot it did for me I hope good things can help you out has well.