from what you said fissure fracture must rest for it when it happens to prevent any complication would occur so you dance on it while it was healing this put stresses again on fracture site and delay healing so what you need according to the last x ray that there are some signs of healing like callus and shadows reveal that begin to heal so you must offload your foot and try to rest till clinical union occur after that begin weight bear as tolerated and apply ice and elevation to decrease pain and any swelling will occur after the union you must do rehabilitatiob program to regain balance and correct any biomechanical deformities that cause the problem to be able to go on dance

be patient for it i have info. for you when a football player had that fracture he rest from playing by 3 monthes to confirm good healing and good rehabilitation