Got through several cycles of depression in my life, and once I started to play around with the idea of suicide as well. I knew it was serious when I stopped communicating with people and started to have paranoid thoughts about everybody around me about what a pariah I have become. That was also a point in time where I constantly abused drugs and alcohol, on pretty much a daily basis.
But I got through it eventually. Escapism (playing games, watching movies, reading books, listening hours upon hours on end at various albums I liked) and my understanding friends and family helped me get rid of those thoughts, and I never seriously played with the idea again.
Hang in there. I know its a cliche, but time does help. Try and distract yourself as much as possible and DO NOT live a passive life. I know it's not much, but even here, in an online community, you are obviously a valuable member, so I am pretty sure you can find the same value in yourself.
Vote the Mayor for Mayor!