many times my sister yells at me and that hurts me. i tell her so, but she says that i have to be strong and be my age. how can i be strong with someone always pushing me against the wall?
You can't let her walk over you, or tell you to just accept her behaviour. That is not right, and you should try and talk to someone about it, someone who can help solve the situation.
Ask God to help you, and also your sister - ask Him to help her see what she is doing and how it is affecting you.
Hi Natasha
I don't think strength has any place here. She is your sister and she has no right to speak to you how she well wants or pleases. I agree with what GoingMyOwnWay said. Talk to someone about it, also your parents.