My front tooth on the bottom is chipped at the back of the tooth what should I do because the rest is getting like that? (photo)

Also looks like your frontal teeth are a little inclined. Seems you need a little work of Ortho and then fix the tooth broken. We are at Playa del Carmen, Mexico. Fun, vacation and dental treatment :) 

You'll need to get a new retainer to fit over the newly bonded teeth. Your dentist who does the bonding can usually make a new retainer for you too.

It's possible that these pits came from the orthodontic appliance debonding. It's the risk you take with conventional bracket bonding and orthodontic treatment. I'm not blaming the orthodontist; it's just a fact of life. As to your question of how to fix; composite bonding would be the best. An...