When siblings won't stop fighting

Sibling Harmony Course

You referee twelve fights before lunch and both kids think you picked the other one's side. This course covers sibling conflict, jealousy, new baby prep, and how to stop being the judge in every argument.

De-escalation scripts, jealousy reframes, and a system for letting them solve it
Covers new baby prep through school-age rivalry
12 illustrated lessons. Audio narration included.

No charge. We'll let you know when it's ready.

What's inside

12 lessons with illustrated guides and audio narration.

How to tell your child a sibling is coming, what emotional reactions to expect, and how to answer their hardest questions honestly.

Your child will be apart from you during the birth. This lesson helps you build a plan that makes that transition feel safe.

Regression, jealousy, and declarations of hatred are common. You will learn what drives these reactions and how to respond without panic.

A script for the moment your older child hits or grabs the baby, covering immediate safety, your tone, and the follow-up conversation.

Understanding the developmental and environmental reasons behind sibling conflict helps you distinguish normal friction from patterns that need intervention.

Step-by-step language for walking into a sibling conflict, de-escalating both children, and guiding them toward their own resolution.

When your children compare what they get, fairness becomes a flashpoint. This lesson reframes equity in terms each child can accept.

Teaching your children to name and regulate their feelings before frustration escalates into hitting, screaming, or door-slamming.

Twelve specific practices that foster genuine closeness between your children, organized by age range and family structure.

Individual attention is the single most effective tool against rivalry. You will design a realistic schedule that fits your actual week.

Oldest, middle, youngest, and only children each carry distinct pressures. Adjusting your approach to birth order reduces resentment between siblings.

Step-siblings and half-siblings introduce loyalty conflicts and identity questions. This lesson addresses the specific tensions blended families face.

It's evidence-based

Grounded in developmental science. Not just our opinion.

Which skills are trainable at which age, how children develop systems thinking, when critical reasoning emerges. That comes from decades of developmental psychology research. We studied the science, then built activities that work in real family life.

Bruce D. Perry

Bruce D. Perry

M.D., Ph.D. in Neuroscience

Psychiatrist behind the neurosequential model and the critical "Regulate, Relate, Reason" sequence used to connect with distressed children.

Daniel Siegel and Tina Payne Bryson

Daniel Siegel & Tina Payne Bryson

M.D. in Psychiatry & Ph.D. in Social Work

Authors of The Whole-Brain Child, providing foundational strategies for integrating logic and emotion to nurture developing minds.

Stephen W. Porges

Stephen W. Porges

Ph.D. in Psychophysiology

Creator of Polyvagal Theory, identifying the distinct nervous system states of safety, fight/flight mobilization, and shutdown.

Adele Diamond

Adele Diamond

Ph.D. in Developmental Cognitive Neuroscience

Neuroscientist specializing in executive functions, defining the biological developmental limits of impulse control and reasoning in young children.

Bruce E. Compas

Bruce E. Compas

Ph.D. in Clinical Psychology

Researcher on coping styles, distinguishing between helpful regulation and harmful strategies like suppression, avoidance, and rumination.

John Bowlby

John Bowlby

M.D. in Psychiatry

The father of attachment theory, establishing that secure emotional bonds are the absolute prerequisite for independent emotional regulation.

Disclaimer: These researchers developed the science underlying our methods. We are not affiliated with or endorsed by them.

Full refund

Full refund

If you didn't find it valuable, you don't pay. Full refund within 30 days, no questions asked.

Self-paced

Self-paced

Start anytime. Go at your own speed. No deadlines, no live calls, no pressure.

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Common questions about Sibling Harmony

This course covers strategies for children from toddlers through early teens. Each lesson includes age-appropriate variations so you can adapt the approach to your child's developmental stage.

Free advice gives you isolated tips. This course gives you a complete system: sequenced lessons that build on each other, with scripts you can use word-for-word and illustrated guides for quick reference in the moment.

Each audio lesson is 15–20 minutes. Designed to fit during a commute or nap time. The strategies integrate into moments you already have with your child, so there's no extra schedule to maintain.

Full refund within 30 days, no questions asked. If you don't find it valuable, you don't pay.
Not ready for the course?

Sibling Fight First Response Card

a pocket card with what to say and do in the first 30 seconds of a sibling fight — how to intervene safely without taking sides.