This is for those, like me, who have an overload of things to do.
Write a paragraph like this:

I have to get 18 lessons, 1 15pg project, 2 written reviews done by Nov 27. I also have to get 8 Chemistry exams in soon, I have to do a math project by Oct 30, reporter analysis by nov 1, math assnmt by oct 23, reporter update by next thursday, and on top of that I have to study thoroughly for my math test 2 and get in an english assnt tomorrow. Geez! I feel much better!

If that doesn't work then list everything so:
1. 18 lessons, 15page project, 2 reviews by Nov 27
2. 8 Chemistry exams by end of semester
3. Math project Oct 30
4. Math assnt by Oct 23
5. Reporter updat next thursday
6. Reporter analysis by Nov 1
7. Test 2 in math and final exam studies
8. English assignment tomorrow

It really does help. Trust me! I prefer paragraphing it just to make it seem more overwhelming. Seriously, it takes my feelings of overwhelmedness away.