20. Go Slow To Avoid Shock
Make your process gradual, especially if you're not entirely certain that you want to keep the gray color for long. Meaning, play around with highlights before you go full-on gray, and try not to chop off all of your hair with just the first salon appointment. Seeing yourself transform so completely in such a short amount of time might give you an identity crisis and make you decide it isn't a look you're comfortable with.