Is paying cheap at fiverr gives you a quality content writing ?

LOL - you are repeating the same mistake I was making. I've been doing SEO for the past 6 years and earned 7 digits a year few years back. To be honest, there are no "content" writers. They are all scammers. Good content writing requires enormous hours of keywords research. Article done by a professional will cost you in the range of $500 to $1K at $100 per hour at least. Each keyword is a project, period. Writing garbage will not get you anywhere. 

The best content writer is you and your SEO skills.... Quit wasting money... Roll up your sleeves, throw laziness out of your window and get to work... I work 12-16 hours days to make money.... Every day... I don't see day light... Yes, I own 3 Benzes, brand new, one is AMG I live in the rich neighborhood. My house is 6,000 sq. ft.. My kids are in private schools. But I work like mad person. I am home all the time, but I am not. I don't see my family believe it or not. So unless you get to work, there no way to succeed....