Be honest with yourself.

Discontentment often comes from what psychologists call cognitive dissonance—incongruence between two conflicting ideas or emotions in your mind.

You can greatly reduce this by just accepting, admitting, and experiencing the emotions that are passing through you.

If you are angry, be angry; if you are sad, be sad; if you are joyful, be joyful. When we try to actively change or deny present emotions, they become meta-emotions: guilt about sadness, anger about fear, fear about unhappiness. Then they become toxic.