As one learning lisp and working through SICP...

I've got to say that this is practically like learning to program all over again.

I'd almost go so far as to say that it's like learning to program. Period. Regardless of the years of experience in those other languages....

I did love programming, though... even though I was so Blubby. As long as I wasn't pushing the limits of the languages, I wouldn't think to look anywhere else. I didn't quite imagine that real Computer Science (like SICP) could benefit me-- given how atrocious so many programmers I'd met that had even Master's Degrees were.... Now I feel like I've wasted years and years of time.

(Why didn't anyone tell me? Ah... but would I have paid attention if they tried?)