I think you should only tag the people who is your close friends. You have followers and if they want to help him they will help you to spread about your needs.
This mistake can not be undone.
But do not upset too much. Maybe someone can help you. Maybe someone will spread your news after sometime.
I'm so sorry I didn't want to make this mess. many people answered me as if I had the plague and therefore to keep away. as a mother I'm trying all the ways to help my children live better. I apologize to everyone