|   | 
		
		 | 
		
			Mr Papers; 
 
As a Canadian, you're essentially from the USA, so I'd be inclined to go for the past tense, were I you. There are far too many young American writers ... etc who're too wedded to this essentially unrealistic style - you can top and tail your work with a present tense intro/outro, 'I am in the Hanoi Hilton/space station on Mars/ring of power stones in the middle of a Wallmart, but the act of writing the thing down is, in the strictest sense, about remembering events, whether or not they ever actually happened. It's a bit of a cliche, but I'd begin, roughly; 
 
'Here I am, how did I get here; flashback; conclusion.' 
 
Unless it's a third person narrative of course, in which case it'd be difficult to say. 
 
Good luck, whatever. 
 
I really should start getting on with this tomorrow.			 |   
		 | 
				
				
 |