first make your thesis! find 3 points that back up your opinion. make sure you have enough to say about those 3 points since they are going to be 3 different paragraphs like for example mental health concerns bc too much social media can impact mental health negatively in younger people. Another example online safety concerns, children can be exposed to things they shouldn’t be at certain ages and you could even talk about how it can negatively impact their academic performance. for the thesis just restate the prompt and add “because….” and your three reasons. make sure to say the exact thesis statement again in your concluding paragraph. it has to be the last sentence in a concluding paragraph and MOST DEFINITELY the last sentence in your introductory paragraph
i hope this helps let me know if you still need help