Luciano
While APD's can change your mental status somewhat, as you say, to need a med like this and not take it is not the best move you can make or advice to give.
Depending on the condition, the change in your mind is exactly what needs to be corrected. If you have a chemical imbalance that needs attention, then not doing so is a foolish thing to do.
The rest needs to be worked out - evaluation, med, dose adjustment, and effect. When these are in concert, then you should be better off. For mental conditions, one should seek someone trained in that field, a psychiatrist[best] or psychologist. Anyone else is not someone who can filter out sublties that distinguish one condition from another, so why trust that they will have you on the correct med?
Depression, panic disorder, GAD, bipolar disorders are commonly misdiagnosed, and thus mistreated.