System one and System two
system 1: thinks based on long term memory, fast
system 2: actually reasons something. slow, lazy and usually take system 1's answer without thinking.
I found that I use system 2 too often. This leads to
short attention span
slow thinking speed
This seems to be one of the reasons why I got low score in school and how I got to college /doro/how-I-got-into-college
I have so wide interests so I can't really repeat things to train my system one.
I don't repeat efforful practice until mastery