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Deep Dive: Myriam Sandler of MOTHERCOULD on Frustration Tolerance and Sibling Dynamics

We want our kids to know what they want and stand up for their beliefs—and we want them to be flexible and get along with others. In this Deep Dive episode, Myriam Sandler of MOTHERCOULD comes to Dr. Becky for advice on helping her oldest daughter in moments of intense frustration: the ones that lead to shutting down and declaring "It's all ruined now!" or "I'm not doing it anymore!" As Dr. Becky and Myriam look at what's really driving these tough moments, they talk about building resilience, managing feelings about siblinghood, and recognizing ourselves in our kids. As always, Dr. Becky translates deep thoughts into actionable strategies, modeling scripts and how-tos along the way. Join Good Inside Membership: http://www.goodinside.com Follow Dr. Becky on Instagram: https://www.instagram.com/drbeckyatgoodinside Sign up for our weekly email, Good Insider: https://www.goodinside.com/newsletter Want More? Check these out: How Do I Handle Sibling Competition? - https://youtu.be/UMSFOzj_eOo What Can I Do When My Child Says “I Can’t Do It”? - https://youtu.be/9Q9qLvbU6bo Why Won't My Kids Listen To Anything I Say? - https://youtu.be/Rb7FSL1y3Oo Deeply Feeling Kids Need a Different Approach - https://youtu.be/WQNM5EyDtKE Motherhood Doesn’t Have to Be Martyrdom - https://youtu.be/ywJMtRHzqFY

Dr. BeckyhostMyriam Sandlerguest
May 6, 202240mWatch on YouTube ↗

At a glance

WHAT IT’S REALLY ABOUT

Helping kids handle frustration, flexibility, and sibling conflict through connection

  1. Dr. Becky reframes “problem behavior” during play as a child’s low tolerance for frustration when reality deviates from a clear internal plan.
  2. She emphasizes narration—slowly telling the story of what happened—as the fastest path to help a dysregulated child feel seen and regain calm.
  3. Instead of rushing to fix the conflict, parents are encouraged to co-regulate first, then offer a real choice that reinforces the child’s capable identity and agency.
  4. Skill-building should also happen outside the hot moment through modeling “realistic regulation,” rehearsing likely sibling scenarios, and practicing flexible scripts.
  5. Sibling tension is treated as normal and manageable by widening the range of “allowed” feelings (love and anger can coexist), reducing shame and explosive behavior.

IDEAS WORTH REMEMBERING

5 ideas

Narration is often 90% of the intervention.

When a child melts down, slow, detailed storytelling (“You pictured rainbow order… then it changed… that feels so bad…”) helps them feel seen and organizes the experience into something their brain can process.

Fixing the problem can accidentally serve the parent’s discomfort, not the child’s growth.

Jumping to solutions may stop the noise quickly, but it can leave the child alone with frustration the next time; resilience is built by staying present through the feeling, not removing it.

Resilience is tolerating frustration, not eliminating it.

The goal isn’t to make the child instantly happy or flexible—it’s to help them remain engaged even while disappointed, accepting “this stinks” as a valid endpoint.

After connection, offer a genuine choice that restores agency.

Once the child feels understood, you can say they can stop—or they can try to make it work—while reflecting an empowered identity (“You’re a kid who can handle tricky things”).

Reflect the version of the child you want them to grow into.

Children tend to behave in line with the identity mirrored back to them; reinforcing flexibility and problem-solving is more effective than labeling them “difficult” or “rigid.”},{

WORDS WORTH SAVING

5 quotes

Resilience isn't getting out of frustration. Resilience is tolerating frustration, right? It's like being in frustration- not getting out of it.

Dr. Becky

To me, a big difference in our building our kids' resilience is how our kid feels our presence in their difficult feelings versus whether they feel alone.

Dr. Becky

We can only regulate the feelings we allow ourselves to have.

Dr. Becky

We can't regulate a feeling we tell ourselves we're not supposed to have.

Dr. Becky

I don't want my kids to have only positive feelings toward their sibling. I want them to get pretty good at understanding and regulating the tougher feelings they have.

Dr. Becky

Frustration tolerance in playMagna-Tile conflict and perfectionismNarration as co-regulationProblem-solving vs presenceIdentity-based language (“you’re a kid who can…”)Modeling realistic regulation and mantrasSibling dynamics and mixed feelings about new baby

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