Messy

It's getting to a point where there is so much in the code that I am starting to find it difficult to find the piece I want to edit.  The net seems pretty much split on what to do, but I am leaning toward trying to pull out sections of code that deal with specific things are create a new class for that thing.  Problem is that I am still hesitant to do this based on my poor understanding of exactly what this means.  It might be worth writing a few smaller projects that use multiple classes to get my head around using them.
There are plenty of things that I want to add to the game, and I could spend hours adding little bits here and there.  I can probably go back to some example code I downloaded and look at it with fresh eyes.  Could probably make more sense of it than I could a month ago.