IDK I'm lousy at fighting the urges myself. But, distraction often helps and also living close to the near and dear. Meaning physical close to those that you love and that loves you (hope you have that), and that do not know that you still cut. That makes me quite urge free and stops me from doing it, if I get urges. To me, being alone gives bad thoughts and urges a chance to evolve - and I'm really bad at fighting them.
Because I'm too into it I often tries to be by myself.
Not much of a tip, maybe a strategy.