perpetual anxiety

Every day I'm anxious, for whatever reason, whether it's an appointment in four days. 

whether it's a meeting scheduled in 4 days, an errand that needs to be done in 8 days, I'm anxious during all these intervals, and my brain is languidly waiting for the moment to come. Even worse, if it gets canceled, I feel guilty for not doing something else in the interim. AND I SIMPLY CAN'T DO ANYTHING ELSE, I'M AFRAID, I'M AFRAID, I'M AFRAID, I'M AFRAID OF EVERYTHING INSIDE OF ME, I'M AFRAID OF THE AGONY OF WAITING.

I can't do anything else all day if I have an atypical task at the end or beginning of the day. I don't know what to do, I want to isolate myself.