So my mango tree was very healthy until the lawn men hit the trunk with the weed wacker. Ever since that happened, all the new growth has been coming out all misshapen and burnt looking.

I have tried spraying the tree with neem oil once every 10 days for about 2 months, but its still coming out with messed up leaves. I also tried cutting the top of the tree off that had all the bad growth, but again new growth is coming out messed up.

Is there anything I can do to fix my tree?