SOLVED. Picture book for Adults about a bunny that learns about the hardships of being an adult. [s]

[Sandra]

This is a picture book meant for adults, likely published fairly recent (2022 or 2021) since I came across it in a bookstore just this year.
The narrator of the story is a rabbit named Bunny, who has a fantasy about being an adult but realizes, as the story progresses, that growing up isn't what he thought it was going to be. To some degree it was somewhat of a dark story; Bunny faces a number of hardships throughout the book, including loneliness, falling sick, divorce, and eventually death.

Thanks in advance!

[Lobstergirl, au gratin]

Have you tried searching googlebooks on some of the exact phrases in the book?

[Sandra]

Unfortunately no luck on Googlebooks!

[Rainbowheart]

I tried as well, no luck on Archive.org either!

Did you find this in the adult humor section?

[Becca]

Things Never to Tell Children by The School of Life

[Sandra]

Thank you!!!! Made my day!