I'm not a doctor but I'm wondering about the whole approach to using the drugs to deal with the depression. You explained that you are a drug addict and then you also told us that at one point you were on four types of meds and it made you crazy.
What I find on this Forum is a lot of people who have gone through addiction and depression without using meds as their main resource. Other things that they say have helped have been 12-step meetings, counselling, keeping a journal, praying, going to church, doing voluntary work, meditation, exercise and of course sharing here regularly.
A lot of people who take a proactive approach to doing those things say their depression lifts.