I used to think depression was a "fake" disease until I experience first hand how a Russian winter and culture shock can do a number on your mental health. So in short I sympathize.
I also work with many mentally disabled clients and war vets who have the most severe form of PTSD.
The problem with depression, and anxiety is it stops you from doing exactly what you need to get better. The only thing that pulled me out of my depressive funk was summoning the courage to get out of bed and go outside despite little kids tossing rocks and getting accosted by drunk locals.
At some point you bottom out and have to come up for air. I myself would not be so eager to recommend a counselor, you need to have normalcy in your life, friends, dates, social time in the quad, whatever. Getting a counselor is almost like cheating, because that person HAS to listen to you, and you don't feel any better about yourself because of it but it can be used as a stepping stone. Taking control of your life and feeling in charge is the only way your going to get out of this.
I also don't recommend meds, not that they don't work (they work quite well), but because they are habit forming and temporary.
Most importantly stop feeling sorry for yourself, focus on helping others.
-Rob