Help...I cant live without her...we split about a week ago and I cant cope

I have never been so depressed in my life.

I have lost her for good and I swear that I love her so much and I just dont know what to do wivout her. What should I do? I dont see the point of bothering in life...I feel like all the energy i had has been taken from me and I cant stand and fight anymore. I see her everyday which doesnt help things. Im scared im gonna do something i will regret. its not only that but im depressed about other things too. I have never been so depressed in my life...

What should I do? Please help cos other wise I dont want to think will happen...

Thank you for your time....