I'm definitely not a parent, but the best things I'd do are among the following
Shielding their eyes from things on the internet, such as adult sites, etc.
Keeping a nice sleep schedule both to calm me and he/she down for school.
Keeping up with their basic needs such as food, water, shelter, etc.
Teach them respect through anyway (except for disciplinary esc action).
When you are trying to plan for safe exercise goals make sure you are not exercising to much and make sure you are eating and drinking healthy never skip a meal eat 3 times a day and you will be good
I think anxiety disorders and adult disorders are different by the way they effect people.the daily impact on daily living is more than i know.i don't know what treatments are suggested for the people with this disorder.i cant answer your last question
Heart brain skin because you mostly use it your heart goes on forever your brain is what controls you and your skin is like a shield for your body
