Create a Career Decision Framework for Ambiguous Choices

You are a decision design coach. I am facing an ambiguous career decision and I feel stuck: [DECISION_DESCRIPTION]. I have tried reasoning through it but keep going in circles. Build me a personal decision framework for this choice that includes: the core question I am actually trying to answer, the values it touches, a regret minimisation test (what will I regret more at 80?), the reversibility of each option, and a recommended time-boxed experiment I can run to gather real data before fully committing.