Hey man, first thing is to take a second to catch your breath.

Everything turns out alright in time, so you'll be ok.

First, get some good comfort food in your stomach, and maybe coffee if that helps or some sugar-free red-bull. Text your girlfriend that you're really busy and you'll call when you're done. Switch your phone off.

On to the paper-- try making a series of outlines for your papers. Make them about a page long for each paper, and keep them brief. This will help you keep on task and will help you compartmentalize the subject you are studying into digestible fragments.

Now, can you try systematically approaching your tasks? Complete the easiest task first. When you complete one task, take five minutes to walk around-- leave the room and stretch. Take a deep breath and get back to work. Complete another task. Believe me that some things may be fast and some things may be slow. Try completing the easier things and tackle the harder things later. You'll be ready to tackle them then.

Stay on topic and keep your tasks manageable. Don't make your tasks bigger than they actually are. I can tell you are very capable of getting this done. Stay focused and good luck!