Ideally your case needs to be checked in person. Braces can correct the alignment of the canine tooth and its not necessary to directly extract a decayed tooth, it can be repaired, though definitely it depends on the extent of the decay.
Next Steps
You need a visit to a dentist ASAP to know your options, this is not a solution u can get online.
Health Tips
Everything can be fixed today with all the modern technology, its just the person should take a decision to get help at the right time. Also please don't make up your mind to extract decayed tooth, always try to save the tooth first and let the dentist decide what needs to be done.