Where should I put periods in this paragraph

Where should there be periods in Maddie wanted Peggy to stop bullying one at school but she thought if she stood up to Peggy she would get bullied too. That is why Maddie didn't say anything to Peggy at all in the end want to moved away because of bullying Maddie and Peggy wrote a letter to Wanda to apologize after that Maddie vow to always stand up to bullying and never stay silent again