It kind of annoys me with psych that they can decide what substances will impair cognition and what will affect that with no thought to the individual or circumstances at all.

My psych is quite happy to put me on anti-depressants that mask my feelings of depression and WORSE trying to coerce me into taking anti-psychotic (which is basically a tranquillizer!) seriously impairing my cognition, but when I occasionally take a substance that opens me up and allows me to think and explore and be able to express the feelings I already have inside, this is considered a bad thing! Selective drug dealing, I think they call it!

What substances are they, can I ask? I would say that taking them during therapy sessions is a definite no no however x