No, I guess not. I also thought about changing her appereance bc of that, but I decided not to do it. I like how she looks like with her long hair and the natural color and it will stay like this. But it doesn't affect how I change my appereance, because I change my hairstyle a lot and also want to dye it in different colors etc. I don't want she to be ME, she is just my Saidy. Nobody must understand this, but she means a lot to me.
And to your situation, it's pretty dumb...I know how you have to feel. I luckely did not had the problem to cut my hair, but I have problems with piercings and tattoos. My mum doesn't like it, but it is getting better. I guess all you can do to wait until you are 18 (like I did, except with my hair) and then do what you want.
I am pretty good, what about you? I didn't heard anything about you in a long time.