I'm 15 and I'm bearly 5"3?

You might want to try some beer? A chinese friend told me that they play basketball in order to grow. Thats at least what they believed in China

To answer your question, most people stop growing until they're 21. Although there are people who still increase their height even after, this simply means you should not worry. There are a lot of ways to grow naturally. I like the idea from waysgrowtallerfaster.com that nature has its own way of increasing your height. I know you have been drinking milk and doing stretching, personally, I have done the same thing when I was your age. Other than that, I tried to eat chicken and added it in my diet. Chicken increases your growth hormones. And when it does, you would know what would happen next. Anyway, you're still young at 15, I am pretty sure you will still add more inches to your height, dear.