I'm 22 and when I was younger I made some rather poor decisions. From from 16 - 21 I abused drugs quite heavily. Smoking weed every evening and night probably totaling around 2000 times stoned in 5 years. I did amphetamines weekly and several hundred pills of ectasy towards the end of it all and various other kinds of drugs to the extreme. It all slowed down my mind a considerable bit. Upon quitting taking drugs I noticed my brain function seemed to get better over the next 2 months but I get mentally exhausted very quickly and sometimes I forget things a year on. Please don't tell me how foolish I am because I know full well.