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I feel like you're missing a few esc's and a colon in there...

zz? Only one esc, but definitely a colon. vim is weird. Works for me, but I understand it’s not suitable for everyone’s tastes.

oh, I love vim! I still hit esc anywhere between 5 and 7 times before typing :wq to save my work.

zz centers the screen on the current line. Use ZZ to save the file and quit. Use ZQ to not save but quit.