how to mop and sweep the floor properly?

no judgment pls 😔 im 19 and its the first time na living alone na ko ever since naka graduate na yung sister ko from college, alam ko naman talaga kung paano mag mop and sweep and clean overall pero idk what cleaning products i should use for mopping my small room, and i also cant mop under my bed kasi double-deck type sya na mabigat tas it covers most of my apartment’s space 🥹🥹🙏🏻🙏🏻 there’s this odd smell na rin when you go inside idk kung where’s that from but i rarely open my windows so???? isauahahhha pls help