How can I stop the urge to self-harm?

You can put a rubber band on your wrist and snap it as a replacement

Try to put your sharps in a spot thats hard to get too that way you have a chsnce to not cut cause maybe you calm down by then. I havent cut in over a year and i have 3 blades in my bathroom never been used.

Allow yourself to have the urge, just wait to act on it by starting with something else ^ice water/ice, etc. set a 15 minute timer or something. in my experience trying to suppress the urge itself makes it worse. But I can prevent many instances by using delay tactics. It’s good to develop a go-to activity for when you feel the urge, makes it easier to know what to do in the heat of the moment.

https://youtu.be/ZsBhvSMQUk4

I run ice cold water on my wrists and anywhere I have the urge to harm