An important element in development/education is peer pressure. Join an advance photo group. Shooting similar events/situations and seeing what/how others see will help you improve and develop your own style.
Take photo classes at your community college. The pre-req's will be very basic to you but after that there should be challenging courses.
Really, really good advice. I am very glad I took a course in photography when at college, and I miss that environment. It's tempting to think that classes are just a waste of money when you can teach yourself. To some extent you can. Using books or the internet you can teach yourself the technical aspects, to some extent you can teach yourself composition. In fact the teacher at your college may not actually help you learn those things any easier or quicker. But even if you can't learn from the teacher, you can learn from the other students. By that I don't just mean you can look at their prints for inspiration. Obviously that's something you can do on the internet too. I mean you watch them as they go about the process of making that image. You help each other with shots and share ideas. Sometimes you work together on a shot or a project, and I think rather than compromising your own personal vision this is a very good thing... after all great music is not only made by solo artists. I really think it helps to have other people around you to offer the benefits of competition and also of cooperation.
As for getting 'stuck'... IMO technical issues are the easy part... not because they're easy to understand, far from it, but because when your ideas are limited by your technical abilities and knowledge, you
know it and can apply yourself to finding out how to solve the problem in question.
Creative problems are another matter. I think most of us at some point (more likely at several points) hit "photographer's block" regarding creativity and inspiration. This is something that's harder to beat because it's harder to understand; how do you suddenly lose the ability to have ideas? More importantly how do you get it back again?
Honestly I don't think there's an answer, at least not a simple one. Sometimes I find it helps to look at the work of other photographers - and for me it helps to see real prints on a wall instead of little images on the web. Sometimes I need to see some art other than photographic... whether that means going to the national portrait gallery or reading a comic. Sometimes visual art is actually the last thing I need, and reading a book is the thing that helps kick-starts my imagination. Sometimes I put all my photographic gear away for a couple of weeks and try to visualise photos like Jeepnut28 said, and other times I actively avoid trying to think in photographic terms. Each of these approaches has helped me at various times, but none is a panacea that works every time... sadly I don't think such a thing exists
Woah that was a long one. Sorry.