hi, i always dream to go see china, i haven’t travel in years so im rusty

i read some of your tips and advise, here are my questions:

1) i will be traveling with a ten years old i don't plan on staying over 60 days do i still need a visa of any sort? can i travel with our usa passport to Beijing?
2) i want to save money and rent a place for two months while there near the city do you know any good town with rental accommodations and low price that is safe for tourists?
3) i plan on taking the train mainly, and order online for my tickets, is there any English version to understand the train website and what is this main train railway website there?
4) you can you your usa debit card to china atm?
5) if we decide to stay longer what are some apartment website that is very low price, thanks
6) you mention something about traveling to china by train, where from? you can travel from this us to china by train now? i'm in florida, what would be my best way to go about it, thanks

thanks for helping out, i really enjoy reading your tips and i downloaded your book and will print a map too