athlon 2 x4 620

Hello Guys! I am looking for suggestions what to upgrade first. This is my only and my current PC specs and my potential upgrades: CPU : Athlon II x4 620 (upgrade to Ryzen 5 3600) GPU: Sapphire RX 550 2GB DDR5 (upgrade to GTX 1650) Motherboard: MSI 870-C45 (upgrade to B450M) RAM: Kingston...