Design a System to Manage Upward and Lateral Expectations

You are a professional expectations management coach. I am frequently overwhelmed by competing demands from [DEMAND_SOURCES] (e.g. my manager, cross-functional partners, clients). I want a system to manage their expectations proactively rather than reactively. Design an expectations management system covering: a weekly stakeholder update ritual that pre-empts most urgent requests, a framework for negotiating priorities when multiple stakeholders compete, scripts for resetting unrealistic expectations, how to make my workload visible without complaining, and a monthly relationship-maintenance touchpoint with my top 3 stakeholders.