So, I wasn't familiar with Rivotril (it goes by Klonopin in the US apparently), I looked it up. First thing listed under it on Google is:
"Can cause paranoid or suicidal ideation and impair memory, judgment, and coordination." Also under side effects, the first one is "abnormal thinking (disorientation, delusions, or loss of sense of reality)."

So I wonder if part of why you're feeling so badly could partly be drug side effects? Especially when combined with other meds. (I've had some bad psychological side effects from psych meds before, particularly SNRIs and Wellbutrin). Maybe talk about reducing one of your doses? Though I know you have to be careful with benzos...