Some ideas:
If you change your voice/dialect/tone in singing or speaking-you're probably being fake.
If you feel the need to pray/say something to fill space-you probably want too much control.
You can't fake a lack of musical proficiency.
If it is not backed by scripture, then "leading worship" through playing music is pointless.
It's difficult to follow someone you don't really know.
It's difficult to lead people you don't really know.
In order to lead, you have to take people somewhere.
Intentionally take the focus off of what is obvious. (musicians, surroundings, etc)
Direct people to the person of Christ.
Most importantly, God is not impressed by my talent, ability and/or confidence. It's crazy how we often feel that He is. I can get a whole service right in every aspect- and be dead wrong before Him in my heart.
Short, biting and to the point. Truthful things I of which I must remind myself.