I rediscovered this, which is more useful than any of my long-form blatherings:
It really doesn’t matter what you study, the important thing is to use this as a
training ground for thinking rather than trying to assimilate a mind-numbing
amount of information. In these days of a zillion different chess products this
message seems to be quite lost, and indeed most people seem to want books that tell them what to do. The reality is that you’ve got to move the pieces around the board and play with the position. Who does that? Amateurs don’t, GMs do.
Read the Whole Thing in the Chess Cafe Archives.