Need help on using the pen tool and making individual shapes (making a vector image)
Hey guys, I really need some help with this one. I have a project due tomorrow morning and I think I got in a little over my head. Basically I traced a picture of Stan Lee and traced most of the fine details to make him into a vector illustration but I realized the shapes aren't whole when I finished. I've been searching on how to fix this issue for hours with no luck. It is hard to explain but I attached an image that may help explain a little better. I am sure its a common mistake but I was hoping there is a quick solution so I can get onto coloring each shape.

I colored some lines that are connected to the path of other lines but do not make a whole shape like I need. Is there an easy way to make every line it's own shape? Maybe by highlighting everything and expanding appearance or something? (I'm new to illustrator and may not know what I'm saying lol)
Thank you in advance for help.