Start by defining the main message. In this case, it might be something like:
"Binge drinking can have serious health effects"
"Binge drinking can make you a social outcast"
Then, do some web searches for background information and statistics.
Then, make an outline---as part of this consider a time-honored format for essays and presentations:
- Tell us what you are going to tell us---the introduction
- Tell us--the main body
- Tell us what you told us Summarize (ideally by showing us that you did what you promised in step 1.
For more a better help, tell us what you know about the subject, and what source material you have read