Self-harm.

I can't stop. 
I've slipped right back into the hole I dug myself out of years ago. 
It started with just scratching with a needle, but I feel like it's not good enough anymore. 
What can I do? 
I don't want to hurt myself. 
Counselling doesn't work, my partner knows and is doing his best, my mum doesn't know...I can't tell her. She won't understand. She didn't last time. 
Help.