Self talk helps "I'm ok" "I will get tough this; I have before" recognizing the attack at face value also helps. The sad truth is it will take time and may never fully go away- not saying it won't but still. I hear tapping helps, the idea is a tactile feeling like "tapping" or pinching when you're in a happy or content so when you do it when you're distressed to anchor yourself back to that happy moment. It takes training and it works with some people. Personally never been able to get it to work so I use breathing exercises instead to force myself into a calm.