I stopped 2mg Klonopin c/t after sone years too.
I quit smoking, drugs, gambling, sugar in a snap and its nothing compared to cold turkey withdrawel.
I personally could not live with the withdrawel, was only increasing day after day, and i decided to reinstate, and it still took several months before reinstating worked. It might never work, it might work after 5 days. No one can predict. Im so happy i reinstated , doing a DMT over 2 to 3 years slow taper now. I guess it all comes down to, can you handle it?
I couldnt leave my room from anxiety/panic attacks for 1 month or see my wife/kids/friends. Door was locked, earplugs, pitchdark. It was no life, i couldnt live like that for months so i reinstated. Even a fast taper ended in the same way, so im doing ultra slow. 0 withdrawel till now. Im at 0,6mg after a half year. But the period after i reinstated, but was not stable was hell. Be prepared for that.