My voice, as describes by a friend, like the noise of a washing machine

Taking vocal lesson was never crossed my mind, but I think I need to break my routine and try something new. So I took vocal lesson. My voice, as describes by a friend, like the noise of a washing machine when you wash a jeans with some coins the pocket. The school have instructors for each music style, I choose a trainer that have strong classical music background. She gave me a good strong breathing technique, articulations and tons of patience cause I made lots of mistakes. And now, I have enough confidence to sing in front of people! not too bad for a former washing machine.