[edburdo]

Fail early, fail often. Try lots of new projects outside your "skills". See what interests you, and where you want to go.

We learn by trial and error. But I think you already know that. I think what you need (to paraphrase the Wizard of Oz)... is a piece of paper that says you are a developer.

You know how you get that? You write it on your resume. That's it.

To be a developer, you call yourself one. Period.

To be a good developer, and one that people want to hire, you have to to have the experience. And it sounds like you have that. Different from mine, different from other peoples... but you have it. Look for new positions that need your skills. It's a great way to grow.