The green nodes are a promising sign. However, it would be be better to plant another tree if there is extensive bark damage. You could even think about replacing the Carrie, which has had a dip in productivity over the last 3 seasons all over South Florida, with Angie, which tastes similar to a Carrie and is more productive. I have both trees; my 8-year old Carrie flowered heavily but the fruit set is disappointing. Angie, just 3 years old from a 7-gallon, is holding on to a lot more mangoes.