I have a lot of friends who suffer from depression. It's the law of averages that I will, since I have friends and depression is common. And I see a LOT of moping on facebook, which is fine since facebook is full of pointless comments and vents and is therefor kind of designed for moping when one is feeling mopey. But then I see this kind of stuff and it jumps out at me: "All I want is to find Mr./Ms. Right."
Here's the hard, cold, reality. Mr./Ms. Right does not want you. Nobody wants someone mopey and depressed who sits around on facebook posting status updates about how they need someone to make them happy. Mr./Ms. Right wants an already happy person to share time or life with, not someone who will put the responsibility for their happiness on their shoulders. Do you want the guy at the end of the bar staring forlornly into his beer? No one else does either.
Again, depression is common. But YOU need to fix your own depression. Take pills, get a hobby, do all the things you need to do. People, especially the Rights, want to share happiness, not provide it. As long as you are dependent on another person for your happiness in life, you aren't what they want. Mr./Ms. Right wants to be a partner, not a crutch.