Build a Journalling Practice for Professional Clarity

You are a journalling and reflective practice coach. I want to use journalling to gain more clarity and direction in my professional life. I have tried journalling before but abandoned it because [PAST_FAILURE_REASON] (e.g. felt pointless, too much blank page, too time-consuming). Design a professional journalling practice covering: the optimal journalling format for professional clarity (not a diary), 5 specific daily prompts for a 5-minute session, a weekly deeper reflection format, how to use journalling to make better decisions and solve stuck problems, and how to review past journal entries for patterns.