Hey Shant! It really kills me to say this, because I totally respect your desire to be happy, but this type of thread doesn't really fit here. Your depression is a serious thing, but this is a forum specifically for folks who want to use drugs, but are concerned about their safety and need advice. So, while yours is definitely meaningful to both yourself and I, it's not really suited to Basic Drug Discussion.
I will throw you a bone and say you should begin to notice some changes after a couple of weeks and by about the six week mark, you should be able to at least begin taking an inventory of how the medicine makes you feel and whether to continue with it.
The long-term depression and/or anxiety that come with quitting an Opioid dependency is a common reason why people relapse. I've quit Heroin and Methadone, both multiple times. After quitting Methadone, I was a shell of a person for almost 6 months. I remember something as simple as getting out of a hot shower into the relative cold of the bathroom seemed like a difficult, emotional task. I already lose shit and am a little unorganized, but the crazy emotions I was experiencing made it impossible to focus on anything. Remembering new peoples' names was impossible. I really couldn't look people in the eye and talk at the same time, otherwise I would forget what I was talking about. It's difficult.
I'm going to move this over to the recovery forums. I think that they're a more appropriate area for this.