As an actor, you want as much variety as you can muster up. Otherwise you just keep playing the same chord over and over again.
When I had my first voice lesson I was 15 years old. And I had a really good teacher. This is what made all the difference. A good teacher will teach you the technique, but also how to listen to your voice.
For a moment, nothing happened. Then, after a second or so, nothing continued to happen.

