The son was unlucky, and the fortune teller said that his parents needed a divorce.

Hello, personally, I think there is really fate in this world. But I don't think the fate of any child can be much better unless his parents divorce, and even so, I think your son would rather be unlucky than divorce you. Fortune-tellers are not necessarily masters, and their calculations are not necessarily accurate. Moreover, a competent fortune teller will usually tell you the solution after working out your problem. Of course, the best way to change your destiny is to do more good deeds and accumulate virtue. I hope I can help you.