Best of luck. If you are expecting to do anything particularly draining in the next few months, moving or a wedding or something, I'd postpone the withdrawal.
It went on for about six months with me, to give you some idea, and it was severe.
I was on 3000mg and went down by 300mg per week. Yes, that was too fast, but 10% at a time is what you were suggesting too.
No worries, my brain is a bit fried too.