My problem is that if I feel that I need to perform very well in an exam, I can get very excited to the point of severe anxiety. This can be disastrous, since all this stress and anxiety hurts my working memory pretty badly. For example, I may have a hard time to understand anything written text that is even a little bit complex in this state. And in the middle of the calculations/reasoning i keep on forgetting what I am doing and why. Generally speaking, I think that the decline of working memory hurts my over all mental performance/IQ. I have experienced this numerous times. I have found that for example niacinamide has a slight calming effect on me, but in these situations, it has no effectat all. I suppose that the same goes with all the supplements.
But is there any drug that keeps you calm without hurting general mental performance? I dont plan to use all the time, but it would be nice, if there was the one, that could be used in anticipated highly stressful circumstances.