I think i get it. It use to be hard for me like that sometimes when my T was away.

Have you tried a whole week thing; tried to get Tuesday back into your week, a normal day, instead of trying to wrestle with just that one day? I use to play with Sundays and Mondays while I worked; you know how you unconsciously treat Monday as horrible before you even wake practically, because it's the back-to-work day and you are sure it is going to be crowded with problems and uncomfortable and you almost expect to look out and find it raining when you wake?

Maybe you can identify some of the thoughts that make that day different from the others and change/eradicate those and normalize the day some.

My husband and I just had our trash pickup days changed after 6+ years of knowing Monday and Thursday were "trash" days and now, it's Wednesday and Saturday. Think of something you associate with another day and move it? Decide to write in your journal every Thursday morning for 10 minutes, first thing, about your therapy experiences? Spread out the pain and switch other normal experiences to Tuesday?