Here, this works for me:
First of all, lose the gun, you're going to kill someone, and that will make your sleeping even worse
Imagine you have a girlfriend (don't worry if you cry, it's natural), then close your eyes... Imagine saving that girl from your fear/creepypasta... (you can use the airsoft gun if you want, it doesn't really matter).
If you have a girlfriend, this wont work... that shows how lonely I am. Excuse me, I need to go and write my 34th romance story... What do you think about the title: "Lost love 34" I really need another sequel in that series...