Sounds like the lessons you're learning are all of the toughest ones, and all at once. Given the situation, one lesson you might be in danger of overlooking is that so many things in life are transitory, and that the presence of so many stressors doesn't necessarily equate the complete absence of good. Just means you have to dig a little more to find it.

Don't know if you're looking for advice or just support. If support, then this is as good a community as any to find it. Might take the form of digital high fives or feedback on your blog/music or just continued interaction on any number of issues. On that note, high fives, man! I know there are plenty of people around here who really enjoy reading your work/thoughts. So I guess that's a form of friendship, if not a more ephemeral one than we generally hope for.

If you're looking for advice, that's great! Because I'm gonna be presumptive and offer advice anyways- that's what I'm good at (that is, the unwarranted OFFERING of advice, I can't speak to the quality of advice offered).

It sounds pithy, but don't underestimate the power of exercise. Studies have shown a pretty conclusive link between increased exercise and lowered symptoms of depression. I am not a sporty person, but I got into the habit of going to the gym and running/lifting whatever weights my scrawny frame will allow, and I gotta say, it just puts you in a better overall mind-state. I don't know if it's the release of endorphins or the directed routine or sustained activity that forces you out of the funk of inaction. But it helps.

Correspond with what close friends you do have. Chances are, if your friends are spread far and wide in a new situation, they're feeling much of the same, and everybody can commiserate. Sometimes just relating makes you feel better, you know?

Keep creating. On one hand, that's another form of activity, and again, activity tends to be the bane of depression/loneliness. And on the other hand- I don't know about you, but I find that I'm way more creative/productive when I'm in a foul mood. Don't know what that's about, but a good ol' case of the doldrums always seems to be fantastic creative fodder.

I have more, but you didn't ask and I'm supposed to be working right now. Bottom line: sorry you're in a tough space. Hope you pull through it alright, and I hope we in this community can provide some sort of needed cultural/academic/social outlet.