HOW COULD I LET MYSELF FALL FOR THE SAME TRICK TWICE? Might be the part of an interior monologue.
Interior monologue is also identified as internal monologue, internal speech, or inner voice. This refers to the ones conversation with oneself either in a conscious or semi-conscious level.
The terms "I" and "myself" are indicators for internal monologue.
The other three sentences are conversations between two people. "I' as the first person; "you" the second person; "Mr. Myers" and "Timmy and Carlie" as the third person, the one being talked about.