I obviously don't know all the answers, nor am I trying to diagnose in any way, shape or form. The OP asked for assistance and I responded with what know to be helpful. It definitely won't be helpful to all and it may or may not work in the case of the OP's situation. But it DID work for me.
I was diagnosed with clinical depression 9 years ago in 1997 in Mcallen, diagnosed with bi-polar disorder in 2000 in San Antonio, diagnosed again with both in 2004 in Chicago. During those years I was on Zoloft, trileptal, paroxetine, budeprion xl, and depakote (not all at once, ofcourse). I did regularly take these medications according to the directions from the MD, and for the amount of time that they requested. They never helped. I am NOT a doctor and I'm not saying that these medications won't work in any case, just that they did nothing in mine.
The biggest thing that I didn't like was that I felt completely helpless when it came to the problems in my life. I thought that there was nothing I could do in life that could make me feel better because the chemicals in my brain wouldn't let that happen. It was people, like the people in this thread, that helped me with their advice and I took it upon myself to actually change my entire way of thinking.
However, it absolutely was NOT something that happened overnight (obviously). It was years and years of advice (sometimes downright mean advice) from friends, strangers and the like, that I ignored and ignored because I thought my body wouldn't allow me to be happy.