Your mission, should you choose to accept it, is to select a portion of a work-in-progress and have someone else critique it. This someone else should ideally be a writer-type person, but can also be an unwitting friend, neighbor, family member, etc. To gain the most benefit from this exercise, ask the reader specific questions, such as:
What is the main character's motivation?
What is the central theme of the work?
Where do you see this scene/novel/character going?
What slowed you down?
What worked for you?
How would you improve it?
Don't forget to keep writing every day, just 15 minutes! You have 15 minutes, right? If not, try writing in 5-minute increments.