Figuring out Procrastination

As I spent over 30 years procrastinating on everything from homework to boyfriends, weight loss and career options, I find myself in a place where I want to tackle it all at the same time.  This is a really bad idea.  So I decided a "bucket list" goal - running a half marathon.  I need advice, inspiration and all the cicking my butt necesary to make it to the end.