To cut or not to cut

Oh no i'm at a dilemma... My hair is very long now, in fact too long. On top of that, i've got lotsa hair, so its long AND thick. You think... wads wrong with thick and long hair right? Afterall, its femine and I can style lotsa styles..
I dunno if u can see that it looks very heavy.. but when i saw this picture, this first thought that came to my mind is that my scalp is suffering from all the weight.

Well I'm jus trying to show that its really long lar. I had thought that I wanted to cut... but jus yesterday I realised that I cant bear to.. =( I've never had such long hair before! On the other hand.. I'm wasting a lot of shampoo and conditioner. -_- oh mannnn should i cuttttttt.... =((((((