Is it normal to be this way at school?

When it was freshman year, I was so happy. I was wearing so many different item like fur coats and crazy hairstyles. But now i’m in my senior year, I don’t even want to talk to anyone. Regardless if it’s one word or a few, I don’t wanna talk at all. I get so irritated when people talk. Then I hardly wear outfits, I just wear the same jacket over and over with different pants.
Is it normal to be this way at school?
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