Bad teeth, don't know what to do?

I have bad teeth, and they make me insecure, but I really don't want braces.

I'm 17 and I feel like I'm too old to have braces, all my friends had them when they were 15ish, so I really don't want them. Plus, my boyfriend is older, and I'd feel really childish getting braces around him for 4 years or something.

Is there anything else I can do to get better teeth?
Bad teeth, don't know what to do?
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