I'm 16 and I still sleep with a stuffed animal. How can I stop?

So I've been sleeping with the same stuffed barney for years now. However, I have now realized that I'm just simply too old for it. If I'm camping with friends then I won't bring it, yet I still find myself sleeping with it at home. I honestly have no clue how I haven't grown out of it yet. How can I start?
I'm 16 and I still sleep with a stuffed animal. How can I stop?
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