Hello, im trying to do my own seo for my e-commerce website as i dont have the money to pay for this service. i just have a few questions and hopefully somebody can help. -how many times can i use a keyword in a page? -how good is the content (paragraphs) suppose to be? im trying to write my content simple so people can understand clearly the first time they read it, can that hurt my ranking with the search engines? website grader says its at Primary / Elementary School level.