You ask what you should do about your wife and child. What can I advise if your wife doesn't want to take inconvenience. Preaching means some inconvenience. There is no reason why you have to be settled in one place. The actual education of a child doesn't begin until five years. Before that the child is free. Thereafter, the child may be sent to Gurukula in Dallas. This is the Vedic system.
The most important aspect of our preaching is Kirtana. Induce the people to chant, that is the only thing. Then everything else will follow. The goal is to make devotees and books; both are required. Distributing the books will make devotees. To make a devotee means to make someone purified. Reading the books will purify the intelligence. A purified heart and mind means Krishna Consciousness. Don't try to become big very fast. That is not possible. Go slowly.