Hi this is Kitt. I was on Ativan for almost a year and before that I was on Traxene for over 20 years for my anxiety. My Pdoc felt I had been on a benzos for so long that I should wean off. We chose a longer acting medication, Valium, to maintain a steadier level of the drug in my system. It will give you better coverage and a lot less side effect than taking short acting benzos. As the short acting drugs wear off you coverage is gone and you may start to feel anxious all over again.
IMO you can switch from Xanax to Klonopin but you should take it on a regular schedule and not skip any doses. You don't want to take both drugs together and you used the Xanax so sporadically you should not notice any withdrawal.
You should have an insert from the drug company with your Klonopin that will give you all the information on Klonopin. What are the dosing directions on your pill bottle for when to take the Klonopin?
I will be looking for your posts.