How do I get my family to stop meddling with my life?

So I'm planning on going on a solo trip to Atlanta. My mom told my aunt about it and she was trying to jump down my throat about it and to not go alone. Like I'm 25 I can do what I want. My other cousins go outta town all the time and they don't say anything about that.

How do I get my family to stop meddling with my life?
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