Here's a stab at it:
Outside of the endgame, I really think plans are really nothing but "micro-goals" that are rarely more than 2-3 moves long that strive to do one of the following:
a) Improve the position of under-developed pieces.
b) Exploit weaknesses (pieces/pawns/squares) or advantages in initiative.
c) Stop any of my opponent's own "micro-goals" as far as possible.
At the sub-2000 (non-Expert) levels, quite often a tactical oversight occurs (soon enough!) and the position then shifts from "micro-goal" execution to converting the win.
How do you work out what your plan in a game should be? What plans are they? What weaknesses should I aim to benefit?
These are all questions I have no idea how to answer or implement in a game, any help from the community would be helpful! thanks