I like to keep asking myself "Why is this interesting? Why is this cool?" (Because it almost always is, if you look close enough). Nothing will turn you off school faster than slogging through equations that seem pointless just to do well on a test, so take a few minutes, step back, and try to find some neat patterns or applications. A lot of profs seem to teach just the equations and how to apply them, but try to ask yourself
why the equations make sense, how they fit in with other things, etc.
For instance, Laplace transforms always bugged me because I coudn't see the fundamental reason why you convolve with e^-st instead of something else, and no prof or textbook will tell you (because the answer doesn't have any obvious practical use). So I played around with it for a few hours and figured out that, given certain qualities that you want the Laplace transform to have, e^-st is the
only function that works (if this sounds interesting, PM me and I can try to recreate my thought process...it was a while ago). This didn't directly help me pass any tests or do any assignments, but certainly reinvigorated my interest in the subject.
As for applications, FIRST is great for this. If you're trudging through control systems theory, think about applications to PID controllers for drive systems. If you hate your electromagnetism course, take an hour or two, make a mathematical model of a simple DC motor, use the specs from the CIM and see how closely you can predict its performance (I've done this, and not only is it a ton of fun, but you end up with a much better understanding of DC motors). If dynamics has you down, start thinking about nifty robot mechanisms (I know that I took stuff directly from my first year physics course and used it directly to help mentor my old team on my next co-op term).
That's a little more abstract than some of the above posts, but hopefully it helps...
Oh, and one more thing: It IS possible to get through 4 years of engineering quite nicely without ever resorting to
a) Kraft dinner, or
b) caffeine.
I've done it, and I know other people who have as well. Finally, don't feel pressured to drink - engineering at my school, at least, has quite an alcohol culture, but I can almost count on my two hands the number of drinks I've had in the last four years, and I get along with everyone just fine.