I want to begin with something that catches the reader while using the 1st person present tense narrative.
eg.
"I am a bad person. I am bad because I cause harm to myself and others."
Assume this introduction continues for an appropriate amount of time (i.e. 5-7% of total story length - or less).
I then wish to "jump into" the story. This is where I'm running into trouble. In my head the story reads better jumping into the 1st person past tense narrative.
e.g.
"I was sitting at my desk reading a book when I heard an alarming sound. Upon investigating this startling occurrence I came face to face with an intruder. I stabbed him repeatedly with my letter opener".
But is it OK to switch like that? In a word I was taught, "no". Should it read:
"I am sitting at my desk reading a book and I hear an alarming sound. I begin to investigate this startling occurrence and I come face to face with an intruder. I stab him repeatedly with my letter opener".
The tense really should not change within the same chapter, if that's what you are planning to do.
If you wanted to change tense - you should have, say the prologue be in the present tense. Then have a distinct separation indicating that you are now "jumping into" the story and changing tense.
Cheers.
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