Hi! I'm currently in high school, and I start classes next week Wednesday. At open house recently I saw that I will be in at least one class with a girl I formerly had some (very ridiculous) drama with. 

(Drama, as in I pushed her trying to get to my locker and she took it personally. Second incident was when I pushed past a friend of hers to get into the classroom he was blocking. He was super chill about it and honestly didn't care, but she ended up making it a big deal.) 

I've been really scared that she's holding a grudge, that she's going to boldly confront me about all that BS. I'm trying to tell myself that it's unlikely that she's still holding onto it but so far I haven't been able to drop the thought. 

Does anyone have any advice as to how to calm down and think rationally, especially when overthinking? Your advice would be appreciated!