Ay up chuck
I know how you feel, having been there before multiple times. Life has a way of giving us a reason to start moving again when we least (or sometimes when we most) expect it, but always when we need it.
What's makin you feel down?? I guess if you don't know then you can address that part of it later when you're more capable.
As everyone here's already pointed out, you DID party pretty hard in this long, cold winter we've had. Taking some time out for you will be a great start to getting yourself all rested and starting to repair whatever you feel is problematic.
First thing to do is go see a quack. A GP will be able to give you something (be it knockout drops or whatever) to help you sleep. You're not gonna be able to deal with anything if you're not getting sufficient rest. Sleepytime is when your body repairs itself and readies itself for the next day. If you're not sleeping easy then you'll feel everything a lot more emotionally and it's really difficult to cope.
You remember i was having proper mental sleeping problmes before christmas, i'm sure?? It left me with absloutley no will to do anything, least of all to get better or do important stuff like uni work and eat and stuff. Resultingly i failed two sujects through non-attendance. And that was them ebign lenient because i'm sucha geek.
Well eventually, after what feels like a zillion years i've got it sorted (well, the sleeping part anyway), and i'm getting things back on track. It's so much easier to cope when you're better rested.
At the very least seeing a doctor will be able to give the reassurance that it's not something medical that's ailing you.
Make sure you can take some time out to take care of yourself and start to figure out where this hopelessness is coming from. If there's anything i can do don't hesitate to ask.
(I'd also like to point out that the Christian in me is POSITIVELY SCREAMING
FIND GOD!! but that i'll let you take or leave. I don't ram religion down anyone's throat. But maybe something to consider?? There's unlimited love and comfort out there for you in God, as well as in the people who care about you...)
So to recap: first step - go see a quack. Then once the sleep part is being remedied the rest will be easier to deal with and you can start to address anything else.
If there's anything bothering you you wanna talk about you knows where i am
xxx