I don't have a hard time with anything you specifically mentioned, but my biggest challenge is trying to keep to a regular schedule. I have a tendency to be "random" in my habits. Haha, that's what my DH calls it anyway. I do much better when I keep to some sort of schedule, but I have a hard time sticking with it for any length of time.
I prefer to call myself a free spirit, but its not always a good way to live. I will say, however, that my sons seemed to have enjoyed growing up in my "eccentric" household.
Maybe I could use time management classes!