Getting side tracked or is it Inspiration

One of the hardest this for me is to stay focused long enough to finish all the projects I start. I do eventually finish them, but one project will develop into 2 or 10 other projects. I am currently in this situation as I am taking a figure drawing class and it is eating up a lot of my time. I have so many other things that I would also like to be doing. I am not going to go into detail right now but I am trying to narrow down my list faster than adding to it and hopefully by the end of summer I will have checked some items off the list and put some away for another day. Creativity begets creativity and that is not always a good thing, but maybe it is.