Man, those brain zaps suck! I was taking 200 mg daily for years. As of last night I'm down from 100 mg to 50 mg. My withdrawal symptoms are pretty much nonexistent this morning, but I just halved my dose again last night so they might come back again in a few days.
The good news is, aside from the withdrawal symptoms my mood is pretty stable and anxiety is still being kept at bay. Sleep is broken up a little bit but I'm still getting some. Cannabis helps me quite a bit with that.