Can confirm. My life has really dramatically changed for the better once I finished schooling and got a job. While in school (and uni) I felt a lot of ennui - it went away after I got tasked with doing real things that actually matter. Of course, not long after that I learned how imperfect the "grownup" world actually is, and some of the bad feelings came back - but it was still better than being in the infantilised state.