Call a hotline pal.. It's not that people here don't care, but it sounds like you might need a professional person's help atm

Look into CBT or DBT.
This is coming for someone who has battled serious depression amongst other mental illnesses for most of my life, either have to potential to be extremely beneficial if you put in serious effort.

Now I hate to be the one to say this, I really do.. But it's not fair, if you are indeed serious, to lay this on people you don't know.. It can be a terrible burden to be in this situation, for both you and the others involved.. Seek professional help, asap.. Seeing someone on a regular basis is the best way forward

Eh...? Hm... How should I say this... Try to get enlightened, and try to realize who and what you really are. Meaning, pause and try to figure out why it is at its very core that causes your depression by identifying yourself. If you start to get philosophical, then it's completely way over your head. Basically meaning that you've missed the point exactly. If you do manage to have enough success thinking about this, you'll eventually say that you are you. And that you are *whatever your name is.*.

However, that isn't the answer you're looking for either. But rather when you're on the right track. As it's a voice in your head that says, "I'm ___. I'm me." Once you've gotten 'the voice' fully identified and singled out, ask yourself who that voice really belongs to. Who you really belong to, and why it is you're able to hear your own voice in your head. Or rather what you believe to be your own thoughts.

From there, you're pretty much in for quite a bit of a surprise. And no, this is no psychological mumbo-jumbo. Nor is it anything to get philosophical on either. It's about self-identification in the form of enlightenment via self-awareness. Oh and as a warning, it can be both a negative and positive experience. For some, it's quite scary and traumatic digging into their sub-conscious mind. This is due to the mind being a lot more than what we believe it to be. And always remember, the mind is not the brain. They're different. Good luck, feel better, and have fun.

After threatening to run my old therapist over I was put onto a new one. He uses a different approach to others - it's a proactive one. See if you can find someone like that. Sure, I still have problems, but they aren't as bad as they once were. The proactive therapists will actually talk to you, ask you what you want out of life and help you reach the goal (with moral and emotional support, not money. I tried). I found the normal ones that just sit there, pretend to listen and ask cliche questions were no help at all.
This guy has actually got me on my feet and enjoying stuff again. Every fortnight I take the motorcycle out for the entire weekend, staying at B+Bs or just camping under the stars, visit castles and historical sites around England during the day. I didn't even realise I wanted to do that until speaking to this therapist. Basically, you want to spend less time sitting in front of the computer playing MMOs, because that will only make things worse for you.