Breaking down the goal is definitely key - I am pleased this resonated with you.

On your questions I would suggest writing in Word or Google Docs - formatting when you come to publish is easier in Word.

You can get physical copies of your book through self-publishing - mine is a physical copy and I have sold more physical copies than kindle versions.

I am currently writing an extensive guide with the complete roadmap of how I went from idea to published in 6 months - I will be giving away free copies to all my email subscribers when it is released. If interested you can subscribe via liamsandford.com/subscribe