I’m 17 years old and I have very weak beard growth on the sides of my face. It brings humiliation to me as it doesn’t look nice and is very short in length but the hair above my lips and on my chin is sufficient and presentable. Is it permissible for me shave the hair on the sides of my face and keep the hair on my chin and above my lips? I only intend to do this until I’m a little older and able to fully grow a beard