I do that a lot. Like, once I got obsessed something for a little while during a longish break from school... And when it came time for school to start up again I got this feeling like this obsession (Or hobby, or whatever you want to call it) wouldn't be 'right' because things were going back to the way they were before the break. Though for me restoring 'normality' to the school stuff is part of my OCD or whatever so that might just be me.