We're glad you found our site and decided to write to us today. Your friend's sister doesn't sound like a very nice person to say such hurtful things to someone. Does your friend ask her to stop? Did she talk to her mom about the things her sister was saying?
We're glad you decided to talk your mom about the situation and at least let her know what's going on. We also understand why you don't want to change buses because of your friends. Remember that it's only one person who said these hurtful things to you so chances are that she's the one who needs some help, not you. Remind yourself that what she said is just words and then tell yourself some positive things that people like about you just to remind you that you are a good person and don't deserve to hear such hurtful things.
Try to avoid this girl and tell an adult if she continues to harass you. Good luck with this!
Stephanie, Crisis Counselor