Overcome Perfectionism That Kills Productivity

Act as a perfectionism and productivity coach. My perfectionism is slowing me down significantly — particularly when [SPECIFIC_PERFECTIONISM_CONTEXT] (e.g. writing reports, making decisions, launching projects). It manifests as [PERFECTIONISM_BEHAVIOURS] (e.g. endless revisions, inability to start, over-researching). Give me a practical guide covering: how to diagnose whether a task deserves my full effort or good-enough effort, a decision rule for when to stop refining, a 'done is better than perfect' protocol for common tasks, and a daily practice to build the tolerance for imperfection as a productivity skill.