I was a freshman in college, taking my general education courses. One of these was a speech class, probably speech 101 intro or something to that effect. The professor (I can't for the life of me remember his name, I'm such a bad person lol) was a middle aged man with long white hair and came to class in jeans and t shirts. He was, by self definition, a hippie. He flunked out of college three times before getting his PhD and becoming a professor. 

The first day of class, he told the entire class "if you only take away one thing from this class let it be this...find your passion, then you will never have to work a day in your life". Smartest man I've met so far. 

At 18 years old, I didn't know what I wanted to do with my life, I thought I did but I didn't.  I wanted to be a psychologist, then I realized that I didn't like people all that much, so I switched to law enforcement. I was good at that but I hated politics and micro management. Also, I couldn't quite pin point the reason behind the empty feeling I still had. 

I wanted to make a difference, not a big difference, just enough to go home knowing that I made an impact on someone's life today, it was very rare that I came across that type of situation doing security, but I stuck around a while and built up a pretty decent resume.  After 8 years, I was illegally fired while out on maternity leave (long and very different story).  I suppose I should thank them, I know that I never would have found my current job if they hadn't fired me. 

I no longer work, I sacrifice my nights to doing something I love and I go home in the morning feeling like I've impacted the life of at least 1 person. 

 Without knowing or intending to, I took that professors advice and I highly recommend this advice to everyone. 

Only you can change your life for the better.  Only you can make you happy.

Find your passion.