how to break a loop

BreakALoop.kt

 run breaker@{
                    collectionModified.forEach { itC ->
                        when {
                            !itC.checked && selectedCount >= 3 -> {maxSizeListener(); return@breaker}
                            else -> {
                                when {
                                    itC.id == category.id -> {
                                        itC.checked = itemView.switchCategorySelector.isChecked
                                        when {
                                            !itemView.switchCategorySelector.isChecked -> itC.subCategories?.map { it.checked = false }
                                            else -> {
                                            }
                                        }
                                    }
                                    else -> {
                                    }
                                }
                                clickListenerCategory(collectionModified.toList())
                            }
                        }
                    }
                }