This first part of this article about the realities of diagnosing ADHD is worthwhile reading: http://slatestarcodex.com/2017/12/28/adderall-risks-much-mor...

One particularly interesting quote:

"Trust me, no matter how unsuitable a candidate you are, no matter how bad a liar you are, somewhere there is a psychiatrist who will give you Adderall. And by “somewhere”, I mean it will take you three tries, tops."