Need help with de-escalation techniques for frustration and hopelessness

Also DBT exercises have been proven to help! I think there are some free pdfs online

Hey, so I just started using this trick where any time I have a self harm urge, I take an ice cube and squeeze it in between the palm of my hands. It’s painful, but I try to breathe through the pain until the ice melts completely (or almost completely). I try to be as present as possible so I close my eyes and focus on my senses. After a while, the urge eventually goes away and I feel less anxious or angry. This is what has helped me so far.