On your 12th birthday, you have lived for 4380 days.
12
every day
2 caleries a day
half an hour should be just about right for a 12 year old
144 months old on the day of your 12th birthday
A four year old should sleep 12 hours a day
At least 10 carbs a day
About 1,300 calories a day.
2
like 1200 calories
Well, that would be around 14 dollars a day and not many people get that many money every day for a month, especially a 12 year old. So, I guess it is.
About 2,000 calories a day, assuming there is also mdoerate exercsie and a healthy lifestyle.