[pcx66]

I think you should first explore Computer Science in general. You should start with a good programming language, a high-level, beginner-friendly, very web-favored one. Pick Ruby or Python. Then grab courses on Algorithms, Databases, Computer Networks and an other area you wanna explore. You don't need to complete them, but just get a feel of what they have in store for you. Make sure you write some code as part of the Algorithms course.

Web development is not just using frameworks. There is real Computer Science involved for building and maintaining any substantially complex web-app. Apart from this, there will almost certainly be domain-specific knowledge required for a complex web-app.

If you get a hang of programming, and love the CS concepts you are trying to learn, you can then build a career path accordingly (may be college?). If you are dis-inclined, then you can get to learn Rails/Django, and keep free-lancing.

I think at the age you are in, you should not miss out on getting a chance to learn some serious CS.