Complex sentence: Since her debut, McBride has had nearly all of her albums certified by the RIAA, with 5 Platinum certified albums, 2 multi-Platinum certified albums, and one Gold album, which means she has sold over 18 million albums worldwide.
Split into simpler sentences: Since her debut, McBride has had nearly all of her albums certified by the RIAA. She has 5 Platinum albums, 2 multi-Platinum albums, and one Gold album, which means she has sold over 18 million albums worldwide.