Unfortunately, most startups don't have the time/resources to teach someone how to code. You need to work yourself up to a base level before you can start contributing to an organization/team/business's code base.

You're right that hands on experience is way more useful than course work. You should simply build stuff, lots of stuff. Stuff you might use, or stuff that might be cool to build. No one can really "teach you" coding as much as you can teach yourself. When you get stuck, try to solve it on your own. Google the errors. If you still can't get it, ask a friend or post on StackOverflow. Repeat this process, and you'll be a coder before you know it!