I Have Been Taking .5mg Of Xanax Two Times Daily,

I have been taking .5mg of Xanax two times daily, with 1.5mg Ativan for sleep at night. I am on 80mg Prozac w/Remeron for Manic Bi-Polar Depression. I also take some Melatonin for sleep. And I am still up and awake through over half the night. Could I benefit from a .5mg dose of Klonapin twice daily (to replace the Xanax), and maybe 2mg of the Klonapin for sleep at night (to replace the Ativan)? I have been on the melds I am taking for almost 15 yrs. My Dr. Wants to take me off of all of my meds. Help me please. I am a devout insomniac. bec.13.