Don't think I have ever heard of the SICP book as my school split all these different subjects it covers into different courses. But looked it up and wow, it goes into a lot of advanced subjects! (recursion, trees, Big O and computational complexity, Data abstractions, Objects, and ends with compilers). That is some survey and it's amazing you were able to work through this in middle school - I was just learning Algebra and the history of the early Americans back then -
IncredibleThis now makes sense you were able to work on Rosetta 2 mainly on your own!