I am 50 and have long dark hair, all 1 length with a fringe. The grey comes back through quicker than i can keep on top of with colourants. I would really appreciate some ideas for a new hair style and am also wondering if a different colour may be better. Lighter so the grey doesn't show so much? Highlights, lowlights? I've had the same style for so long and really feel in need of a change but not sure 