I think this fits into anxiety, maybe, maybe not...

I bite my nails really bad, I hate it! My fingers look terrible. So much that they bleed and have started to grow deformed... I even chew the skin around them and sometimes use a knife to cut bits away. Have tried "bitter-bite", that stuff that makes them taste really bad, in my mind, the desire to bite is greater than the bitter taste....

Does anyone know of some way I can stop... People often make comments about them, making me more conscious about them.

Is this a form of self-harm? Or just pure anxiety?