I’m thankful for Racket - it got me regularly programming in lisp by virtue of LeetCode accepting it as one of its languages.

I did start to feel Racket’s “wordiness” towards the end - it started to feel a bit like COBOL. I’ve since moved onto Clojure and really appreciate the shorter keywords/function names/fewer parenthesis.

I still miss for/fold though - that thing is an absolute machine.