@raspberrytorte, I can relate to your paranoia and anxiety, I had it really bad a couple of months ago. I was paranoid about the sounds in my neighborhood, people coming to the front door, sirens, and more.

It took a while to do - I learned how to step back from the feelings I was having and just let them pass instead of worrying about them. I would find a safe place alone and relax, and try to see the paranoia and anxiety on their own for what they are - passing feelings.

I know it's not easy to do but when it works, it works really well. I still have them, but they're much more manageable now.