Go to a frum parenting class, since if those people are giving talks about parenting, it must be that they know the answers to these questions. I’m sure that the children of all people giving parenting classes have come out super.
More seriously, if I hear about a person giving a parenting class I wonder, oh, and how did that work out for you? If their own children do not testify to the effectiveness of their parent’s child-rearing methods, then it would be silly to waste our time listening to them.