I admire people like Warren Buffett

Watched part of a Warren Buffett interview on TV a couple weeks ago. He knew what he wanted to do since he was young. I thought I knew too, but reality had a different plan for me. I feel lucky for having a nice apartment and a stable romantic relationship at this stage of my life. My job makes me frustrated and depressed all the time. Whenever I whine about my job to my friends, they tell me to do something I love instead. The big questions is, "What can I do for a living that I love?"