He ran across the street, and into the yard. The cook rushed into the dining area of the restaurant, he was clearly annoyed. Stopping at the red light, seemed problematic for the teenagers. Use italics for titles of published works. Do not misuse capital letters.
Students often capitalize words with no apparent reason.
Be sure you are consistent and have a specific justification for using capitals. Read your paper aloud. Listen to how it sounds. When possible, avoid repeating the same word or phrase over and over. Ordinarily, paragraphs of only once sentence are inappropriate.