Trileptal and meds

I have been taking 1200mg of trileptal for about two years and just switched from cymbalta to prozac. All i want to do is sleep. Im drinking red bull after redbull to stay awake. its been one month since the switch. im wondering if should now go down on the trileptal since i dont have the norepinephrine from the cymbalta. Im so frustrated. been on 34 meds just like most of you and just want the right combo. anyway trileptal gave me no side effects other than calming me down