If you're looking to learn cool stuff, I highly recommending finding a copy of the original SICP in Scheme and working through it. It will expand your mind to new ideas.
I was going to drop a link to my favorite pdf version (with improved typesetting and graphics), but sadly the download link appears broken :( https://github.com/sarabander/sicp-pdf
The web version appears to work though: http://sarabander.github.io/sicp/html/index.xhtml