does this story ever actually go back his family & the maid who tried to kill him lol
Reading between the lines, it should get back to that eventually. The thing is, though, with a plot like this one? It's going to take a while.
Consider that if it were possible, the Goddess could have sent an oracle about his birth before hand - that no matter what job he held, he would have been instrumental to the Kingdom's survival. But this didn't happen.
This means that the Goddess doesn't have a direct line of communication (or even an indirect one) to anyone else on her world except the MC. Under other circumstances, he might have been treated as a Saint for being able to not only hear her, but converse with her as well.
Ultimately, this means that there are no shortcuts here. The MC needs to cultivate his own power until he has enough leverage to deal with his fool of a father and that poor maid who's basically been turned into an assassin bot.