Changing the word order in sentences does not always have to change the meaning.
Peter walked to school but ran home.
Peter ran home but walked to school.
Sometimes, however, the meaning can be changed by re-arranging the word order.
First I'm going shopping, then I'm going to cook.
First I'm going to cook, then I'm going shopping.
Rearrange the words so the sentence changes meaning but still makes sense. You do not need a comma before 'and'.
I jumped into the water and caught up with my brothers.