I second HtDP for both its material and fact that it has batteries-including, GUI-based tooling to go with it in form of Racket Scheme. Once you know it, you can approach the other resources much better. You can also use your familiarity with macros/DSL's to prototype features you find interesting from other languages in Scheme for your own programs. You can experiment with different styles since the LISP's are among the easiest to do multi-paradigm languages in. Lastly, you can even embed low-level, imperative constructs in DSL's to get benefits of LISP when doing efficient, unsafe coding much like Galois does for Haskell and C with their Ivory language.

sillysaurus3 is right about the MIT books being held on pedestals. It's not just them but happens with lots of "elite" colleges. There's usually much better books for learning. Now, where I disagree is that SICP is a good book with plenty of value in it for people that know Scheme. I loved reading all the sections on deriving interpreters. It was so clean-looking compared to what I did in imperative languages. It's just best to learn programming and Scheme elsewhere first.