Complex sentence: On January 12,2017, "4 Your Eyez Only" was certified Gold by the Recording Industry Association of America (RIAA), and only three months later was certified Platinum on April 7,2017.
Split into simpler sentences: On January 12,2017, "4 Your Eyez Only" was certified gold by the Recording Industry Association of America (RIAA). The album was certified platinum by the Recording Industry Association of America (RIAA) on April 7,2017.