Is this friendship a waste of time?

I recently started talking to this girl, and she seemed nice enough, we’ve talked on and off for a couple weeks now. Slowly building a friendship. But it seems that she only talks to me when she has a problem that she wants advice on. Anytime we try to talk about anything ‘normal’ like hobbies or interests, she seems uninterested and shuts down the conversation. She’s barely asked me anything about myself and she mostly just talks about herself. Am I wasting my time with trying to build a friendship with her?
Is this friendship a waste of time?
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