Are you one of those who thinks time management is for geeks? You should have a rethink.
Time management is about getting results, not about being busy. Time management won't stop you from having that crazy fun, rather it would justify it.
Review your goals whether they are immediate or long-term goals often. Chunk long-term goals into doable daily goals.
Get a small fanciful note and keep a list of all daily goals, do this first thing in the morning. Note must always be accessible to you. This is the most important part of this post.
Everyone has a peak and low period. Do difficult task at your peak period and easy task at your low.
Say "NO" to unnecessary request. This can be difficult especially if the request is from family or friend., but say NO.
Don't procrastinate. Attend to necessary things immediately. Don't follow the second thought go back to the first thought.
Make sure you reward yourself in any manner for an effective time management result. Have a crazy fun after a day well spent.