Here's a thought.... or two.... or three...

• learn Chinese ( Mandarin / Cantonese )
• play squash competitively
• learn to properly defend yourself
• take a night class in something interesting
  
• your body is a nutrient /drug filter, only put nutrients and good drugs in to it ! http://moodfoods.com/
  
• spend time developing your mind and soul
• as you are the center of your universe, learn about yourself
• want less, expect more
• be patient, sometimes doing nothing is something
• do not watch random tv, specific channels or programs only, dl programs...
• read the classics
• look for the good in people, if you can't find any... move on...