It takes time and committment. I made the leap from employee to employer so that I could spend more time with my son, age 5. My wife is a full-time mom. He gets plenty of socialization, thankyaverymuch. He comes into my (home) office every morning to learn about stuff (planets and space, these days). I don't set up an instruction period, we just go to websites and drive the mars rover, or watch videos about planets. Next month it may be crabs, or dinosaurs, who knows.
Kids are full of learning instincts, until it gets beat out of them (as happened to me and my wife both) by public school.
Third, I may not be up to this task,
I would worry if you were sure of yourself. Since you're not, I'll bet you'll do just fine.
And it's not like you're committing to twelve years - do it until you can't manage any more.