You might look into pediatric occupational therapy. They've got lots of strategies and tools that can be helpful. Some of it is purposeful practicing of stressf

You might look into pediatric occupational therapy. They've got lots of strategies and tools that can be helpful. Some of it is purposeful practicing of stressful interactions in a group environment where all the involved children are working on things, so there's more room to have measured and calm reactions to physical outbursts. It's likely that they may be helpful in working with the school to figure out strategies that are effective and that fit within what the school is willing to do. If you can, you may also consider alternate arrangements. You can't go through life avoiding situations that result in being overwhelmed, ignored, or forced into things you don't want to do but it's generally easier to tolerate it as you develop; taking a pause and putting the child into an environment that is easier for them to manage and/or more supportive for now and returning when they're more able to manage and self-regulate could be helpful (or not) for the child. Sometimes a year or even a few months of growth makes an enormous difference in capability to manage difficult situations.