No change in musical style will survive unless it is accompanied by a change in clothing style. Rock is to dress up to.
I prefer to sing in the shower vs. the car. The shower is just steam you know its just you and nature and no clothing. You know there's nothing separating you. It's just you and the voice - you and the water.
Fairest and best adorned is she Whose clothing is humility.
My quick beauty tip is always have a tinted gloss of some kind to give you some color even if you have no makeup on.