Also vary the kind of paragraph you use to give your piece interest and spice. Use the active voice instead of the passive. I shall always remember my first visit to Boston is much better than My first visit to Boston will always be remembered by me. There were a great number of dead leaves lying on the ground, write Dead leaves covered the ground. Instead of It was not long before he was very sorry that he said what he had said, write He soon repented his words.
Nothing can kill a piece of writing faster than vagueness.
As an exercise in being specific, try writing a few paragraphs with a great many nouns and verbs and very few adjectives and adverbs. Then read your piece and notice how crisp and vigorous it is. One of the greatest sentences in literature did not go on and on about how Our Savior was wallowing in the depths of despair and was feeling burdened with the weight of the world and wondered what to do about it and decided he should just be emotional and go with it. Firm up that flabby writing. Ernest Hemingway was famous for ruthlessly editing his short stories.