I don't know what to do with my life?

I'm 21. I still live with my parents. I'm working full-time as a server. I decided not to go to college after high school, because I didn't know what I wanted to do and I still don't know. I don't want to work as a server for the rest of my life. I want to move out of my parents house, but I don't make enough as a server to afford to live on my own. I'm going to need a higher paying job.

I don't know what career I want though. I'm not passionate about anything. I have no direction. How do I go about finding my passion?