Can deviated septums really be fixed over time? (Photo)

so im 13 and i have a deviated septum, my moms nose doctor told her that i couldnt have surgery due to my age and because i have no breathing problems, he also said that it could fix itself over time. is this true because i have the most assymetrical features ever due to this problem, assymetrical lips, eyes, nose even face shape. Questions: what can i do about the assymetry (it really bugs me)? is what the doctor said true, and why cant i perform a surgery if its not getting fixed by itself?!