As an SIer who didn't ever use to set goals or count days/weeks/months till quite recently when things started going pretty out of hand, I feel that it's important that you're able to deal with the urges without SI'ing, not that you make it so many days/weeks/months..hence, each urge you are able to fihgt off and each time you're able to find a healthy alternative to self-harm, is a step in the right direction. After all, SI is not just hurting yourself, it's a coping mechanism tha tyou need to learn alternatives to.