I concur with others about working with an occupational therapist and also agree that the pediatrician should be able to provide a referral. The time I was seen by an occupational therapist it was covered by insurance and there was minimal copay. OTs are trained to help people adapt when they’d physical condition is somehow outside the norm.
The OT may also be aware of a dwarfism support group where you can share challenges, ideas and solutions.
Here’s ONE resource. I’m sure the public school should be able to provide additional resources and support.
Here is a listing of more resources.