I am so sorry you are feeling this way. Please don't hurt yourself. I tried to commit suicide last August and it has about ruined my life. Luckily, after an inpatient stay and some ECT treatments, I felt better and my meds started to work for me again. Have you tried distracting yourself? Perhaps a good book or writing someone a letter would help. If you're feeling suicidal tonight, please call 1-800-SUICIDE or another crisis line. I wish you luck and speed finding new therapist/psychiatrist. hugs

I am very sad to hear you are feeling like this. I know the feelings well as I have attempted suicide before. Please don't act on these thoughts. There are people here who care and there is hope that you can get the help you need if you don't give up. I am here for you if you need to talk. Hang in there and don't do it! Check out this website about suicidal thinking:
http://www.metanoia.org/suicide/
YOU ARE NOT ALONE AND I AM PRAYING FOR YOU!!

PLEASE just know that all the negative thoughts you are having are LIES that your depression tells you. DO NOT believe those thoughts. Hang on and know that they will completely go away when your depression subsides...and it will. I have been there=--attempted 3 times, and am SO GLAD that I was unsuccessful, even though my life still kind off sucks. I am glad that I am still here to deal wit hit. If you need to change therapists, just assume that you are going to find the best therapist yet. When I had fast repetitive racing thoughts, my doc gave me a med that makes it go away (I think it might have been Abilify or Seroquel). The thoughts stopped almost immediately. Or at least slowed down so I could rationally deal with them. Suicide is a permanent mistake. Don't go that way please. Write back please.......I will wait.

Dreamer,
I've had those 'what does it matter what I do, I'm not gonna be around anyway' thoughts and I had to combat that with: 'I have to motivate myself to do what I need to do just in case I'm here' mentality because, odds are that you WILL still be here. If you don't, you will sink even deeper into depression and finding even more reasons to blame/hate yourself; you've even acknowledged this...
Depression is the BEST liar I've ever had the displeasure of meeting. You're very young and have so much ahead of you; there's plenty of experiences for you to build on and getting thru this will make you that much stronger; please hang in there...

I understand what it's like. My only advice, and although I'm going to steal this from a slogan is "keep calm and carry on." Sit and look at the aspects of you life that you have to live for. I'm guessing you are a student. Think about how lucky you are to be that and how much potential you have to do well.
For me, my job and school were my saving grace. In my freshman year of college, I went through such a rough patch where I almost lost my job and my grades were so bad that I had to switch my major. I've been able to turn it around a little. I still hate many aspects of my life, but instead when I'm feeling completely panicked about everything, I journal. I allow myself as much time as necessary to write down everything that's on my mind. My journals don't make sense and if anyone else were to read them they would probably think I was insane. Then I move on and do something constructive. The journaling usually helps get some things off my mind in order to allow me to do other things.
I had a suicide attempt 3 years ago. Somedays, even now, I have times where I think to myself, it's just not worth it. I think back to myself laying in the hospital, waking up, and my mom sitting next to me in tears apologizing as if she had done something wrong. That was just an attempt, and I feel horrible about what it did to my mom and even when I have days where I just want to give up, I think back to that and realize that I CAN'T do that to her. I can't leave here.
I hope this helps, I may have gotten off topic, but I hope you'll find some good points in what I said.
Take good care of yourself, you are more than worth it.