When I was 14(любой возраст) I was silly and had bad marks at school(я пишу это как пример, лично к вам это не относится:)). I hadn't a lot of friends and was unhappy. All changes when I meet my Best friend. His( her) name Sasha. He ( she) very smart and talented. She affected me and I became better. I started to get good marks, better deal with people and found new hobby-football. So I can say that my friend changes me.