Like every job in the world, animating is not an easy thing. Sometimes you can get so angry that you will want to throw your laptop/desktop out of the window…
… but it can be very rewarding as well. Just think about it. Creating something that does not exists, something that in the beginning is just an square object like the one illustrated in the next picture …
… to a highly detailed 3D model, which can be animated and do things that a real human being can not do.
A good example of a full length CG animated sequence made by Alex Roman
Just like music, animations are an excellent way of expressing yourself. Your feelings, your believes, your imagination.