Almost four years later, Alix has a new house and a new skateboard. "It's different riding my skateboard in my neighborhood now," says Alix, 10, who just started school and loves math. "It's easier, that's for sure." Her dad echoes the sentiment. "I feel fortunate," he tells PEOPLE. "I worry less during hurricane season because we lost everything before. We know we don't need any of it when we have each other."