Why do some people have extremely stable emotions? It's not because they have a good temper, but because their life structure is stable. Emotional instability is often not a personality issue, but rather: financial instability, loss of control over life, relying on others for a sense of value, blurred boundaries, and an uncertain future. Emotions essentially serve as a safety net for a fragile life. Truly emotionally stable people have several obvious traits: a sense of control over life; intrinsic self-worth; clear boundaries; long-term physical well-being; and they don't see immediate problems as the end of the world. So stop asking whether your emotions are stable or not. What matters is: whether you can take responsibility for your life. Those who can take responsibility will naturally have stable emotions.