The way I did it (on my own, w/ some advice from my Dr. but not direct supervision) was to cut my doses in half. Once I felt ok on that, I cut it in half again (so 1/4 of the original amount now), and so on. When it got too small to cut, then I went every other day, then every few days until I eventually forgot to take it.
Please be aware that you may feel worse before you start to feel normal again. It took my body 2-3 weeks of emotional highs and lows before I finally stabilized at a middle range. Of course, if things take a big turn for the worse then maybe now isn't the best time for this, but if you are feeling only mildly to moderately crappy just know that it's to be expected. Trust your instincts.
I *highly* recommend getting some nutritional support at this time if you are able to. I first saw my Naturopath when I was weaning off Zoloft and she started me on a vitamin regimen including fish oil and a high-dose B complex. I think those really helped my outcome, both short term and even now, one year later. Feel free to PM me if you'd like more info and best wishes to you!