The best advice I have seen so far for students overwhelmed by their studies. From someone who has been through it at MIT. Excerpt:
"People fail to graduate from MIT because they come in, encounter problems that are harder than anything they've had to do before, and not knowing how to look for help or how to go about wrestling those problems, burn out. The students that are successful look at that challenge, wrestle with feelings of inadequacy and stupidity, and begin to take steps hiking that mountain, knowing that bruised pride is a small price to pay for getting to see the view from the top. They ask for help, they acknowledge their inadequacies. They don't blame their lack of intelligence, they blame their lack of motivation."
If you are struggling to cope with the load, or if you know someone who is, this could be helpful to get things back on track.