Kitatus has some books he put together covering Blueprints for free a while back. All in digital form or you can buy a hard copy from Amazon, I believe.
There are a number of other resources out there that could be helpful. The Community Content, Tools, and Tutorials section of the forums has a lot of good information, projects, and things like Kitatus’ books. Unfortunatley, you don’t know what you don’t know and it can be hard to find that information until you’ve had to work your way through learning it.