The most effective way to do it, is to do it.
Well done is better than well said.
It's always too early to quit.
The secret of getting ahead is getting started.
Leap, and the net will appear.
The dog that trots about finds a bone.
Who seeks shall find.
Never complain and never explain.
Go for it now. The future is promised to no one.
Quality is not an act, it is a habit.
Spend time reflecting on your emotional and physical existence and how that applies to the voice. You have to apply that wisdom and experience when you sing - it's what comes through.