DRACUT — First responders in Dracut now have new tools to help them reach children who struggle to communicate during emergencies — thanks to a 16‑year‑old from New Hampshire who knows firsthand how overwhelming those moments can be. Mayra Gillis, a high school junior who has epilepsy, visited Dracut Fire Headquarters on Tuesday with her mother, Jessica Gillis, to donate 10 sensory kits to the town’s police and fire departments, according to a j…