you do not need as much text, but you do need a news story or a video clip about an adolescent (or group of adolescents) who are experiences or have experienced the problem of binge drinking.

You do not need to describe the intervention, nor ask a foundation for money yet.  You only need to describe the problem, provide an illustration of the problem in the life of an adolescent(s), and justify the need to intervene.  Note that the post per se will be succinct:

In your post:

1)    Describe the issue of interest to you, specifying whether it is a problem or a positive prospect of youth development.

2)    Provide a hyperlinked URL to (and a brief summary of) a story of a real-life adolescent(s) that illustrates the issue; a story you find in video or print news, personal blog, podcast, or any other relevant media outlet.

3)    Justify the need to create an intervention that will address the issue, making sure you cite information from the assigned chapters on problems or positive prospects of youth development. (Specify the reading using-text references in APA style).

Comment:

In addition to your post, please comment on a peers post. Feel free to comment respectfully to express your impressions about the issue, own observations of it, agreement or disagreement, among other possibilities.
you just need to follow the new instruction and rewrite it will be fine.