When you know where you're going you'll be magnetized toward it. Much like driving a car. You're looking far down the road rather than at the steering wheel. Don't think about each word you're singing but rather the whole phrase and your breath will naturally be available for what you want to sing. Singing is about feeling and emoting, not making sure you perfectly hit each note. Concentrate on each note and you'll find yourself in the ditch. Feel the phrase and you'll soon be at your destination without even thinking about it.