Which one do I pick?

So I’m going out with a 16 year old girl that smokes cigarettes and drinks alcohol. [she says she was raised in a place that’s a bad influence.

But my thoughts are that she could not help me grow or help me in general.

But then theirs another girl that is the same Age as me (18) and does not smoke or drink. And I don’t smoke or drink either. Give me your opinions!
Which one do I pick?
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