Grammar Struggles

My biggest struggle is identifying incorrect grammar. Editing grammar is difficult because I regularly second-guess myself and the rules. They are correct in saying English is the hardest language to learn because of the complicated grammar. I will have to buckle down and memorize these rules so that grammar is not the deciding factor in my success, or not, in Writing for Mass Media.
It is imperative that mass media writing is both condensed and informative. However, if my thoughts are not strung across the page, I go crazy. I must make adjustments.