You are mature enough to know you have a problem, though. Many people your age are very immature and yet think they have the whole world figured out. It seems you have most of your peers beat in terms of maturity to me. I have maturity problems myself and I am older than you. You are still rather young. It is easier to change during youth than when you are older and more set in your ways. Nevertheless I will pray for you that you will grow in maturity, which is something I think we will all have to answer to before our Lord to some degree or another on the Last Day.
Our Father, Who art in Heaven, hallowed be Thy Name. Thy kingdom come, Thy will be done on earth as it is in Heaven. Give us this day our daily bread and forgive us our trespasses as we forgive those who trespass against us, and lead us not into temptation but deliver us from evil. Amen.
Hail Mary, full of grace, the Lord is with thee. Blessed art thou among women and blessed is the fruit of thy womb, Jesus. Holy Mary, Mother of God, pray for us sinners now and at the hour of death. Amen.
Glory be to the Father and to the Son and to the Holy Spirit as it was in the beginning, is now and ever shall be, world without end. Amen.