There are many variations to this question:
Can a special ‘pooja‘ make my child straight? Can yoga “cure” my child? Can a psychologist “cure” my child?
The long and short answer is: NO.
You can pray for a million dollars to fall from the sky into your lap and you’re more likely to get your prayers answered than if you try to pray away the gay!
Think about it, can you pray that someone turns gay? I certainly pray that every homophobic person I meet turns gay. It hasn’t worked. So stop praying for the cure and pray for the million dollars instead.