Anxiety can make you feel like you are insane. Anyone with an anxiety disorder will know exactly with I mean when I say it is hard filter out sounds. You hear everything at once at equal level of sound. It literally sounds like everything is in your head much louder than it really is. I have mastered the art of blocking everything out. That is a problem with other people though. When there is more than 3 of us and more than one person is talking I can’t handle it. I usually have a Kylie Minogue song in my head that I listen to. She has so many amazing songs I am good for hours. I also some time watch movies that I know by heart, usually the last unicorn . I have to have something to focus on and just ignore everyone else. The issue with that is I can’t talk to anyone unless we talk one at a time.