<human>: Can you give me a shortened version of the text?

So I got my first ever job interview for Sales/Customer Service next week on a Tuesday and I'm slightly nervous and/or worried. It's my first ever interview before, and I have to bring my resumé and references along. I've never done anything of this scope before, so understandably I'm wondering how it'll go. I know nothing of marketing but I am pretty influential with words (but bad at maths - assuming I can use a calculator/re-learn spreadsheets if necessary). 

Oh, and they're going to train me too.
However this isn't in the field I want to do when I graduate next year - Bachelor of Arts (Creative Writing).
I'm pretty sure it'd be good experience though...so...?
I dunno - I guess I'm just hoping it'll go well.
<bot>: I'm worried about my job interview next week as it's not in any of the fields I'm planning on graduating with  (creative writing). Any tips for a first job interview to do with marketing/ sales and customer service?