Some of the characteristics of having good mental heath is having a sense of belonging, purpose, outlook, self-sufficiency, and a healthy self- esteem. If you deal with this well you could be called resilient which in meaning you have the ability to adapt effectively and recover from disappointment, difficulty, or crisis.
Self- Esteem
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Self-esteem is how much you value, respect, and feel confident about yourself. This can help your over all mentally health and can also increase your competence level.