Anyone know how to get rid of overthinking? or is it impossible to get rid of?

Decide whether the sentence is grammatically correct or incorrect as written. esas fresas son de manuel. son sus fresas

"in english, write six to eight sentences comparing cultural aspects of greetings in spanish-speaking countries with greetings in your own culture. use what you learned in the lessons to tell about three differences and three similarities. discuss non-verbal greetings and how respect is shown. you may also include verbal greetings, but do not simply translate phrases from one language to another."

Ineed with 6-20! my teacher didnt really explain