It will help you to identify your triggers so that you can look to remove these from your life.
Challenging unhelpful thinking styles is useful in changing you mind on making unhelpful or potentially harmful.
Could you have done anything differently? If so what would it have been?
Now you have identified them you can look at how helpful or harmful those thoughts would be if you put them into practice
Looking at your thought diary and evidence record sheet what would be a more helpful way of looking at this?
Check in and re-evaluate your thoughts and feelings. How does this make you feel now that you have considered the trigger?