i want to sh

im going through a breakup & i want to cut so bad but i know if i do i wont be able to stop, i cant hold this feeling in any longer what else do i do? i know what im feeling will only go away if i drag a blade across my skin but will that really satisfy me? how do people just ignore the feeling & not give in? cause theres nothing i want more, i cant even do basic tasks without thinking about it and im feeling overwhelmed with so many emotions because of how frustrating this is. i cant keep this up