I am a Vietnamese like you and have just read your essay posted here. Sex for teenage is also a problem that i am interested in and your essay here makes me impressive. But I wonder if you can let me know what the topic of this essay exactly is? that is "concept of safty sex", "need to teach the sexual knownledge for teenages" or "the difference between buying a car and choosing a spouse".
All the best,
Student or Learner