Author Janet Fitch wrote a list of 10 Writing Tips That Can Help Almost Anyone.
Long ago I got a rejection from the editor of the Santa Monica Review, Jim Krusoe. It said: “Good enough story, but what’s unique about your sentences?” That was the best advice I ever got. Learn to look at your sentences, play with them, make sure there’s music, lots of edges and corners to the sounds. Read your work aloud. Read poetry aloud and try to heighten in every way your sensitivity to the sound and rhythm and shape of sentences. The music of words.