Ummm maybe twice a year. That seems like a reasonable answer
There are some numbing gel for your teeth when you first get your braces. When I first got mine I ate ice cream to relieve the pain a bit. Make sure you eat soft foods since it can very much hurt eating hard foods. Gum massages also help a lot ! Hope this helps :D
If you are over 10 get it out of your head lol
If u mean data storage then glass could be one
Alcoholics Anonymous provides a support system for those dealing with alcoholism because it allows people who have the same issue who can relate to each other motivate each other to stay sober. Hope this helps! :)