I was in the same situation as you when I was a child. My mother gave me the idea, and I'm still working on it, and the tip of my nose has improved. Push from both sides of the nose with your hands every day, and put your thumb and forefinger on both sides of the nose to extend outward. Take some time out every day to repeat this action, and stick to it, because you are still young and your nose has not been shaped. You can stick to it for a long time, so that your nose will improve at a certain age. I do this in the hope that it will help you.