usually it’s not recommended to fast if you’re under 18 and certainly it’s not recommended to start with a 10 day fast without any prior experience.
use this figure out your caloric needs and go from there: https://tdeecalculator.net
Rule 2:
▪ dry fasting
▪ extended fasting without electrolytes
▪ fasting while underweight
▪ fasting while under 18 years old
▪ fasting if you have an eating disorder or otherwise, promoting or exhibiting disordered eating behaviors)