[Kate*]

This always happened to me too. Try to focus rationally on the big picture. I know it doesn't feel like it now, but a few bad grades won't ruin your future. You're human, nobody's perfect. Take a break until you calm down (doing work when you're this upset is next to impossible anyway) then pick the most time critical assignment first and focus only on the work in front of you. Most of the time getting started is the worst part of essays and once you start you'll knock it out in no time!

Break your big assignments down into manageable pieces. Do a certain pages or number of words a night until it's due. Same with studying, set aside a reasonable amount of time to study each subject per night and when that time is up put the material away.