Can't fill, shapes not right, trouble joining lines

[cgfiend]

I've attached a file of my design that I need to combine into shapes so that I can fill the various areas with colors, but I've not had luck getting the lines to match up and/or creating objects that allow me to fill with color. I would greatly appreciate it if someone would take some time and readjust the intersections and shapes so each area can be filled. I've tried some of the tips on the forum, but can't seem to figure it out. Your help is greatly appreciated. If you can explain what I was doing wrong as well that would help too. Thank you.