Tapering advice needed

Hi, my name is Alin and I am addicted to benzodizepines. For the past month I've made the mistake of tapering to fast, going from 24 mg per day of clonazepam (Klonopin, Rivotril) to 13. The result was severe withdrawal problems. Now I've been on 13 mg of clonazepam for the past 6 days. I plan to go to 12,5 mg after 8 days. Is this to soon? Am I tapering to fast? I really want to avoid those problems, they were unbearable.