Thanks for your query.
You have stared growing at the age of 8 & then at the age of 10 it stops & now it is stagnant as per your observation.Usually in puberty
growth of secondary sex characters with growth of bones happens together.The growing period of bones is up to approximately 18 years until epiphysis
as you have periods nothing to worry. you get growth of bone resulted in increase height up to 18 years of your age.You should not have to do anything special to grow just take enough calcium in the form of milk.Have a nice day.