Much truth here. Years ago I took a summer school course in technical and scientific writing involving intense exercises in ruthlessly eliminating passive voice (regardless of the gymnastics involved in doing so) and many other common tropes of academic writing. The course was like a cell-obliterating chemotherapy against whatever creative writing voice I had managed to put together at that age, and it took years to overcome the effects.

Toss in a good measure of courses involving study of Hemingway and Vonnegut and I was a wreck for years. A passive construction, a ten-dollar word, the odd adverb--all had me in doubt and writing the most vanilla prose.

So it goes.

It was only when I started participating in NaNoWriMo that the forced march of cranking out 1666 words a night for a month combined with the permission to produce a shitty first draft allowed me to being my recovery.