A good presentation comes down to clear content, simple visuals, and confident delivery, and preparation is what makes all three possible. The students who present well are rarely the most naturally outgoing, they are usually the ones who prepared and practised, which means this is a skill you can absolutely build.
Start with your content and structure. Know your topic well, then organise it simply, a clear opening that says what you will cover, a middle with a few main points, and a short conclusion that sums up. Do not try to cram everything in, because a focused presentation with a few well explained points lands far better than a rushed flood of information. If you use slides, keep them clean, with few words and helpful visuals, and never just read your slides aloud, because slides are there to support you, not to be your script.
Then practise delivery out loud several times, ideally in front of someone or a mirror, until the flow feels familiar and you are not reading from notes. On the day, speak slowly and clearly, because nerves make people rush, make some eye contact with the audience rather than staring at the floor or the screen, and stand in an open, steady posture. It is fine to have a small cue card with key points, but avoid a full script. Remember your classmates are on your side, not judging harshly, and a few slips do not matter. Preparation plus practice turns presenting from terrifying into manageable.
Example: Rehearsing your presentation out loud three times the night before, so you know your opening and main points by feel, makes the actual delivery far calmer than reading it cold.
One practical tip: Never read your slides word for word. Keep slides simple and use them as prompts while you speak to the audience. That alone makes you look prepared and confident.