I have naturally very dark brown hair but am now very grey and dyeing it every three weeks. Around the front and the temples it is white and the hair resists dye, plus it grows back really quickly. I can’t keep on top of it. I think I’m now so grey/white that blonde would be less maintenance as the roots wouldn’t show through so quickly. But I’m not sure how easy it would be to achieve, given I’ve been dyeing it brown for years. Any advice much appreciated.