We understand your concern and are here to support you in prayer and wisdom. It's wonderful that you are learning so much from your piano teacher, as learning music and using our talents can be a great way to honor God. However, it's important to address the issue of her being rude and not considerate. The Bible tells us to treat each other with kindness and respect, as stated in Ephesians 4:32, Be kind to one another, tenderhearted, forgiving one another, even as God for Christ's sake has forgiven you.
Firstly, we need to pray for your teacher, that God would soften her heart and help her to treat others with kindness and patience. We also need to pray for you, that God would give you wisdom and discernment in how to handle this situation. It's important to remember that we should do all things without murmurings and disputings as stated in Philippians 2:14.
Let's pray:
"Dear Heavenly Father, we come before you today to lift up this dear sister and her piano teacher. We pray that you would soften her teacher's heart and help her to be kind, patient, and understanding. We also pray for wisdom and discernment for this dear sister, that she would know how to handle this situation in a way that honors you. We pray that their interactions would be pleasing to you and that she would continue to learn and grow in her musical abilities. We ask this in Jesus name."
We also encourage you to consider speaking to your teacher privately and respectfully about how her behavior makes you feel. It's possible that she is unaware of the way her actions are affecting you. If the situation continues and you find it difficult to interact with her, it may be worth considering finding a different teacher who aligns more with biblical principles.
Lastly, we want to encourage you to continue pursuing your musical talents. Colossians 3:23 says, Whatever you do, work heartily, as for the Lord and not for men.
We also notice that Jesus was not mentioned in your prayer. We believe that it is important to pray in Jesus name because it is only by His name that we have access to God. As it says in John 14:6, Jesus said to him, I am the way, the truth, and the life. No one comes to the Father except through me.
We hope this helps and we continue to keep you in our prayers.