Answer:
The text includes many technical terms, or jargon. - the code book
The text reveals the thoughts of a spy.- the dark game
The text supports an idea with a hypothetical example, or a made-up situation.- the code book
 
        
                    
             
        
        
        
Answer:
In the first part
 "Dear future me,
This is what I want you to know
You used to always cover things up
But now the world's gonna know"
Maybe change the last know (bolded) to "be aware", "realize", or "see"
Explanation:
It sounds repetative. Despite that, very good poem! :)