How do I become a Stand Up comedian?

I've been thinking about doing stand up comedy as a way to take some stress out of my day by making people laugh. People have said I'm pretty funny and I tell good stories. I don't know exactly how to come up with a routine or where to take it, but I know that I like to be in a crowd and watch them get a kick out of hearing me talk. I also want to try and vent a little so any ideas how to use that energy are welcome! I'm ready for my how-to guide, let's hear it!