As everyone else has said, build stuff. More specifically, I highly recommend Hartl's Ruby on Rails Tutorial as a starting point. It does a fantastic job of he

As everyone else has said, build stuff. More specifically, I highly recommend Hartl's Ruby on Rails Tutorial as a starting point. It does a fantastic job of helping you get your hands dirty with everything from the database through the frontend, without assuming a ton of prerequisite knowledge. Even if you never touch Rails again after (which would be surprising, I have been using Rails for a decade and still love it), you'll have a good grasp of the fundamentals involved.