Increase seo rank on your site using below steps.
SEO Articles : Must be your artical is more attractive and updated day to day.
Search Engine Submission : Add your site all url on google using google login.
Keyword selection : Select Most usable keyword from your content and must be all page have unique key word.
Meta tag optimization : must be add all page or post have unique meta tags.
Link Building : your rank increase more if in your site more url compare to your competitor.
Common SEO mistakes : do not use conman tag, do not use key word out side of content , must be update content day to day.
Add robots.txt to hide unused file and folders url.