I'd this normal for a freshman to to still have baby teeth. And should I wait till they all fall out because I need braces.
It is not normal to still have baby teeth in high school. It is possible that you do not have the adult teeth that normally replace the baby teeth. This is especially common with the lower molars. It is also possible that the adult teeth are impacted in the bone.
Your dentist or orthodontist should take xrays to find out why you still have the baby teeth.