To learn anything from this exercise you need to use measurements. I suggest you pick up a 6" machinist scale (fancy name for a metal ruler with very fine measurements, usually 1/32 and 1/64" on one side and 1/8 and 1/16" on the other side). They're widely available at just about any hardware/home improvement/tool store. They look like this:
http://www.micromark.com/RS/SR/Product/84174_R.jpg
Measurements for action are primarily taken at the 12th fret and represent the distance between the top of the fret and the bottom of the string. If you want to lower your action, measure what you currently have and then lower all the strings in 1/64 or 1/32" increments. Not only is this method more methodical (consistent and repeatable) but it also gives you a reference point if you want to put the action back the way it was.