How to get a keyword successful?

[frank]

Step 1: Use a Keyword Research Tool to Find Niche Keywords. Before you can get started in earnest, of course, you need to choose your niche.
Step 2: Refine Your Niche Keyword List.
Step 3: Determine How Competitive Your Niche Keyword Phrases Are.

And then what??

You didn't suggested the solution for the OP's query.