I wished I lived closer. I love to organize things. I would have a blast organizing your room for you. Put some music on and dig in. I like to clear out one portion of the room, straighten that portion and move to the next section. I have a couple of ideas of very inexpensive organizational tools that I will post for you. As you do each section, stand back and admire what you have done and how great it feels to be organized.
Here is one link:
http://www.amazon.com/Spectrum-77170.../dp/B001I07XU6
These are shelf dividers and they might work for your shelves. If you google shelf dividers, you will find a plethora of options.