OCD!

I have a serious problem. I am copying all of my assignments for my classes into my planner and it is giving me a headache and putting me in a bad mood. The problem is not the serious amount of work that I'm going to be doing this semester; the problem is that I am super stressed about copying everything on to the right day and making sure everything is organized. I am on the verge of going out to buy a new planner because it seems like I have messed this one up beyond repair even though there are only a few little mistakes that could probably be fixed with whiteout. I know I usually have a flair for the dramatic but this is completely serious. Help!