More warm-ups to try:

Use these warm-ups whenever you’re in need of an idea. And stockpile them in your journal, even though they may not seem useful at this time, you can always come back to them again and again.

LETTERРWrite a letter to someone out-of-town of just write the letter to an imaginary person, describing something or someone this person has never seen.  It could be your garden, neighborhood, a refurnished room in your house, your new car, pet or a newborn child. Write as complete a description as you can.

SCENE– Pick a scene from a book you thought was just okay and rewrite it. ¬†Change it every way possible until you are pleased with your improved version as long as it still fits the story’s overall purpose.