I have relatively long wavy brown hair which is now about a third of the way down my back. I don't know whether I should cut it now because is it is getting quite long or leave it to grow longer. please help :D
It's your hair, your decision. Just ask yourself how it makes you feel.
But since you asked, I love the long hair, up to a point. It's not clear what that point is, but only a third of the way down your back is still very sexy, so no worries there. I'd say get it cleaned up every so often depending on how fast it grows, but for god's sake, keep it long, luv!
I think it's up to you. I think we all have different definitions of long which makes it kinda subjective. I 'de say long for me would be right above my butt. Mine is long too but I never have it THAT long and it's just a life style decision. everyone will have different lengths of hair.