Okay, so there's this girl, and she copies EVERYTHING I do. She listens to the same music as me, she buys the EXACT same clothes as me, and she even went to the same hairdresser as me and asked to get her hair EXACTLY like mine.
Is this normal?
Is it normal for me to be angry?
How can I stop this..?
Is this normal?
Is it normal for me to be angry?
How can I stop this..?

I feel for you. If you're able... Cut this person out of your life. I wish I could do the same.