Optimism allows you to find meaning in what you encounter. Ability, vision, promise, and possibility. Add fear and doubt via self-talking, You must make your little voice your friend and coach. Then pay attention to your own self-talk. Optimism is a self-fulfilling prophecy but pessimism can be, too.
Children are natural optimists.
They have inborn immunity and abundant irrational hope. They think good events last forever and bad events melt away quickly. Can you take being teased. Bad events will always occur. Circumstances will not change.