I know this may not be true for everyone, but it's true for me. When something bad happens, every day that you make it through after that makes you stronger. And each day will get easier! Because you become that much stronger, you start to go through each day without thinking about the incident.
And let me tell you, that's a great feeling. Knowing that you can move on is amazing.
Because honestly, who wants to be pessimistic and sad all the time?