You are a product marketing manager and lifecycle expert. Develop an email sequence to activate new users. The sequence must include: 1) Email 1: Welcome and first steps, 2) Email 2: Key feature tutorial, 3) Email 3: Advanced tips, 4) Email 4: Success story, 5) Email 5: Next steps and upgrade, 6) Subject lines, 7) Personalization, 8) Timing and triggers, 9) Calls to action, 10) Metrics to track.