If you can't stand the mess and cleaning it is keeping you from your school work; go elsewhere to do your school work (library) for a bit. Alternate! Do a good chunk of school then a chunk of cleaning, back and forth. Don't let the "mess" distract you from the fears you imagine about the school work. More than half our fears come from imagining the future, which we can't do because it's not here yet! Break down the school work so the chunk is doable and not scary and just do that. Then break down a piece of the cleaning so it's doable and just do that, back and forth.