It doesn't always start with someone asking too much of us. Sometimes it begins with us repeatedly saying yes. Yes, I will sort it. Yes, I am fine. For a while, it looks like competence, reliability, kindness. Then one day you are exhausted, resentful, vaguely furious with everyone, and you cannot remember the last time you asked what you needed. This is the Self-Sacrifice lens, and here is how it quietly feeds burnout at work and at home.