How do I start creating an E-book to sell on Clickbank?

Can someone guide me, please? Or at least tell me what software to use to create a professional-looking, yet simple e-book?

And do I need to have my own website and such?

dude hire a copywriter to put your ideas down in a persuasive manner. Hire someone to make you a website they will usually make a graphic for your ebook and such THEN submit to clickbank and wait for approval. This is what works for my friend he usual just grabs one of the best ebooks out there dealing with his niche and having the copywriter rewrite it and put his ideas in there and hires these REALLY good guys for the website and submit.