He is a real turtle . Someone who always moves very slowly. She is such a sheep. A follower; someone who can't think for him or herself. He's being an ostrich . Someone who hides his/her head in the sand and refuses to face problems or reality. He's a lamb. A gentle, patient, understanding person. Nice and considerate. What a crab  he is! A grouchy  person; someone who is often angry and in a bad mood. If a person is like a turtle, which of these is most likely to be a problem to him or her?
Keeping the house clean. Learning a new language. Getting to school on time. Saving money for future use.