Actually I've read that some people took months before that "empty" feeling where your brain feels like it just stops workin goes away. Ive heard of some people who still get it. But at this point your goal should be to detox in the sense of not putting any more junk in your body, eating all organic and healthy stuff.
In terms of withdrawal, I would highly recommended 5HTP at 25 or even 50mg which are not that much. It is a serotonin replenishment supplement as 5htp is a direct precursor to serotonin. My mom's depression, moody and irritableness went away on 25mg every night.