Lately I have been trying to organize my brushes accordingly to the type it is (grundge, elegant).
I have been going into my Photoshop Presets, then to brushes, and I have organized them all into folders entitled with their proper name. Then, I will go and have an overall look at my brushes and everyone of them shows up instead of the folders.

Is there anyway I can fix this, or am I doing it wrong?
Note: I am on a macintosh (and it will probably be the same as windows) and I have photoshop.