Use a relationship grid to analyze sibling dynamics and discover your assigned role.

Run your current thought through the list of ten to pinpoint exactly which mental trap caught you.

Prefix every thought with "my mind is telling me..." to see you are not it.

Use one emotion-labeling phrase that defuses tension in a hard conversation within 30 seconds.

When he speaks, name feeling: "sounds frustrated" — labeling calms emotions.

Every difficult behavior hides an unmet need — practice the question that reveals it instead of judging it.

Rule: per email, one decision: reply in 2 min, delegate, defer, or delete. No "later".