I'd also like to say that we cut because we don't know how to deal with our emotions and thoughts so we release the tension using the blade. It is an addiction, and like every other road to recovery we may relapse and indulge in it, and it's okay. Keep on working on yourself and on your emotions and you'll start to find more constructive ways to release your stress, anger, shame, hate. Don't beat yourself up over it, it's the only way you know how to express emotions at the moment, but you'll learn other ways that won't make you feel so bad.