From all the answer you got I have to agree on Hubert's if you are here just for money, you might as well start doing surveys, like inbox dollars, send earnings, etc.
BUT If you like to write, then it's going to take time, dedication and love, patience, more writing, and some more writing.
Everyone tells you oh your going to need good quality hubs, but the truth is all writers need editors, if writers were perfect editors, would seize to exist.
Advice go to success stories, study the successful writers, their format, how the spread out their work, what kind of hubs they write the most popular.
What I find that works for me,,,anyway,,,is I write what I want to know about, what brings me passion, I don't really care who doesn't like it, and I have found that many like what I write because I get them the info they are searching for.
Study, read around, and keep on trying you'll get there...