Don't worry about it man. Anyways, anatomy is a simple answer to what you(and I, heheh) need to study and practice. And it can't be solved in one sitting, either. Draw a ton if you want to be able to draw your characters in any perspective, plus foreshortening. That includes drawing exercises that are meant to improve your skills. Lots of hard work.
http://www.youtube.com/watch?v=ektQPOQ9HeM&feature=relmfuBe able to draw boxes, and box-man characters. The stuff from that video, mega important.
Read The Vilppu Drawing Manual by Glen Vilppu.
Why I personally like the Vilppu Drawing Manual is that it gives you steps to learning. Put in the work and you will see the results. A way to know if you're learning is if you're uncomfortable. So if you're uncomfortable reading that book, then that's good!