If you are happy with what you are doing and how you are spending your time, don't sweat it. You are learning skills that will help with your employment, right? Do you have a good chance of getting a job with the graphic design?

If you ever got to the point where you were dreading leaving the house, that would be a bad sign, in my opinion. As it is, it sounds like you are just really eager to work on your projects at home.