Dear AzulOscura,
I am sorry you are burdened with this anxiety. This is a kind of anxiety that afflicts me too. People not weighed down with this type of anxiety can never realize how debilitating it can be. I have a few things that help me a bit and would be happy to share them with you if you are interested. I am not sure they would be helpful to you though or any others struggling with these kinds of things. Congratulations on being able to face some of the situations you mentioned.
Sincerely yours, Yao Wen