"Everything else just feels like gluing together libraries that won’t help me at all in the future"
Don't be discouraged by this. Although it may be easy to use existing libraries and existing tools it does give you some insight on how they are structured and how people have designed them. I have been using cocos2d for a game that I have been creating and I have come to know and love some parts of it but have found some flaws in its design and some areas where it needs improvement. If it wasn't for the library I wouldn't have a working product by now. See using libraries as a way to give leverage your ideas and not re-invent the wheel in the process.
Overall, I think you are in a way better place than most 15yr olds and some older people (like me). I was in the same position as you at your age and I was scared I wasn't making the right decision. You have a lot of knowledge of the tech and know the right tools to build upon your ideas. I say don't worry about the intricacies right now and I suggest that you just keep on building new things and see it as a great learning process. Learn the basics and the rest will just follow. Make mistakes and just relax. You're still young!
Don't be discouraged by this. Although it may be easy to use existing libraries and existing tools it does give you some insight on how they are structured and how people have designed them. I have been using cocos2d for a game that I have been creating and I have come to know and love some parts of it but have found some flaws in its design and some areas where it needs improvement. If it wasn't for the library I wouldn't have a working product by now. See using libraries as a way to give leverage your ideas and not re-invent the wheel in the process.
Overall, I think you are in a way better place than most 15yr olds and some older people (like me). I was in the same position as you at your age and I was scared I wasn't making the right decision. You have a lot of knowledge of the tech and know the right tools to build upon your ideas. I say don't worry about the intricacies right now and I suggest that you just keep on building new things and see it as a great learning process. Learn the basics and the rest will just follow. Make mistakes and just relax. You're still young!
If you ever need some inspiration: http://my.opera.com/adrnlnrsh/blog/show.dml/11402771