I used to spend my time on https://philosophy.stackexchange.com/ looking for.. answers. Until I read "Philosophical Investigations" and "On Certainty" by Ludwig Wittgenstein. They depict the nature of language and the nature of doubt, and allowed me to frame philosophical questions differently, from language perspective and a psychological one.

"It is not our aim to refine or complete the system of rules for the use of our words in unheard-of ways. For the clarity that we are aiming at is indeed complete clarity. But this simply means that the philosophical problems should completely disappear. The real discovery is the one that makes me capable of stopping doing philosophy when I want to." — Philosophical Investigations.