Resist yourselves from screens, lie on a flat surface and close your eyes, also apply multani mitti on your forehead, it will extract the warmness in your body, make you feel relax
Drink tons of water and rest your eyes from looking at too many screens. (Mobile/laptop/TV)
You can also make yourself some soothing tea. Oddly enough that helps me.
Do a 5 minutes nadhi-shodna pranayam before eating or drinking water for some while. It will help. You can perform this everyday also for a calm mind ☺️