school or not school, all presentations are similar. You can do this. If I had to make presentation, I'd first think about what I want to say and pick 3-4 main points, then I'd think what I want to say about those main points. I don't see anything wrong about quotes, for example there a clear definition of depression, and everyone uses it, and there's nothing wrong with that. I'm sure you can do the speach you're not afraid, that's like 80% success already