Looking for help through getting citizenship by act 8

Hi, so I am looking someone who went by this procedure:

-How much did you wait when they did make an appointment for exam?

-How did you know how to answer to those questions? ( I know there are a list of possible questions, I am more interested how did you find answers to those questions)

-Can you speed up the process?

- Could you recommend to who I should go for my language certificate?

If there are important info, please mention it!

Thanks for advance, for helping me out!!!