While nothing groundbreaking on the animation end ("Elemental"), "Inside Out 2" illustrates complex emotions well for kids and teens and it surely resonates with adults alike.
Anxiety is good in small doses; it gives you a drive to perform better. But when it goes overdrive, it will overrule your life. Don't let bad memories of the past or fear of what might happen in the future take away your living in the present. You can only prepare, but you can't predict the future.
Don't lose your whole sense of self and embrace all your emotions - don't suppress them; observe them, but also learn to let go. You can't control the outcome; you can only control your efforts. Have passion in what you do, regardless of the outcome. It's part of the joy of living!