Women large jaw .com

(i'm new to this so i don't really know what i'm doing lol)

I'm 15 and i've recently noticed my jaw shape changing. (I think its down to the fact that I grind my teeth at night but now i have a shield thing to wear at night)
My jaw is square from the front view but from the side is quite oval (sorry no pictures yet). It's strange cos it used to be quite oval before, but now that i've noticed it changing I find that its kind of manly and I don't really like the fact that its sort of stuck between these two shapes.

I find it really unattractive and think that my jaw is too large in proportion to the rest of my head :(

I don't really know what to do about, if theres anything that i can do about it, really :S