So if I get the question: "Humanity strives for a sense of belonging", then I would say something like-
"Hence the above texts reflect humanity's intrinsic desire to belong, reinforcing the notion that (thesis)." Then briefly summarise your paragraphs in 2-3 sentences. If in doubt during the HSC you forget your conclusion, you can always restate your introduction and change some words so it's not identical.
Obviously this isn't exactly what I would write but I made this up one 2 seconds so it's not perfect. Hopefully this gives you an idea of what to write though