At the risk of adding too much information to the pile of stuff about how to do the 2nd assignment, can I make the following little decision map:
IF you do not plan to submit the paper to a professional journal then the only specifications you need to attend to are what the journal wants in terms of papers, i.e. the journal's purpose and focus. You do not have to use the formatting requirements of the journal. That would be silly and also remove a valuable opportunity for you to practise your APA 6th formatting skills.