Procrastination can indeed be a serious problem depending on how much you do it. I used to be a heavy procrastinator and I never got anything done. Surely the whole "big to do" list can definitely look and sound really overwhelming, so you would simply choose something easier for today and put everything away for tomorrow. But that's never a good thing to do, because you will keep putting it away. We can always overcome the overwhelming feeling, just gotta have some willpower :)