I'm going to lie about being a navy seal
Why lie about being a navy seal?
I want to be recognised as a hero
Being a navy seal is a heroic thing, but if you weren't one that is being devious. You have to tell people the truth and avoid such lies. Lying does not have any real benefit and will only get you deeper in trouble.
I know it's wrong but I just do it for fun.
Well it's not very funny to joke about being in the army. You should never lie about something that serious.