Meditation
The other tools in this kit equip you for specific moments, Meditation trains your mind daily so you can execute them under pressure. Just 10 minutes per day is proven to strengthen the areas of the brain associated with focus, toughness, and calmness.
Headspace has a great beginner course that teens get for free:
STEP 1: Submit this form. Within 1-week later will receive sign-up email titled “Next Steps for Headspace Sign-up”.
STEP 2: Download the app, sign-up with the same email. Start with their “Learn the Basics of Meditation” course.
There’s a reason pro athletes in every sport include it in their training.