Hi all. Following on from a thread a posted on here about jade face rollers, I ordered one and it came with a gua sha. I think I prefer using it to the roller, which doesn't seem to do much at all. My question is - how often do you use your gua sha? I've looked at various YouTube videos and the results, if real, look amazing. How often do you use yours? Morning/evening? And what are your results? Tia