Given your age, braces should be your first option. While cosmetic dentistry is a great and quick option, it gotten involves filling into the tooth and artificial materials. Braces are a more natural and permanent option, but they do take time. Within braces, you have options of conventional, ceramic, lingual and clear aligners to suit your and your dentist's preference. If for whatever reason braces aren't suitable to you, cosmetic dentistry can be an option too.