How can I manage my time better?

I am obsessed with schedules because if I don't keep one, I end up unbalanced in my life. For example, growing up I focused mostly on school alone and didn't develop practical skills, like cooking or car maintenance, or common knowledge. As an adult with many time demands, I've become more aware of this imbalance, and have tried to compensate, unsuccessfully. It seems like I can't focus on living my life and pursuing goals at the same time. Does anybody have any simple time management tips for a smart person with no common sense?