2. Carry out keyword research. What are people searching for on Google? How do they search for that particular issue? Use KWFinder, Moz Keyword Explorer and Google Console, Quora and Amazon reviews.
3. Give your article a good title. Try using CoSchedule Headline Analyzer. Title should include keywords.
You have to improve on-site criteria (number of keywords repetition, fill in title tags, h tags, etc.) and to improve off-site criteria (number and quality of backlinks, facebook shares, etc.)