Please help me, I just need 4 sales.
The only one person who could help is You. Optimize Your gigs, do Your best, do research and stop posting topics like that here.
Ask for help here : My Fiverr Gigs Topic.
Here are a few recommendations:
Post an actual picture of yourself - I’m fairly certain you aren’t Hugh Laurie.
The Art of War - although somewhat strange to attempt to sell on fiverr, I don’t believe it’s in the right category. Switch it around. I would even put it in the gifts section.
7 ebooks - this could be useful however some of the phrasing you used made it seem, to me, that people could find these ebooks anywhere on the internet themselves without having to pay you for them. Give them a reason why they should order through you