Building my first ever PC!!

FINALLY!! After several years of talking about it and thinking about it, I finally made it happen. I took the plunge and built my own computer for the very first time. PARTS LIST: CPU: AMD Ryzen 2400G APU RAM: 16GB Corsair Vengeance RGB @3000mhz SSD: Crucial MX500 250GB HDD: Western Digital Blue 1TB Case: Phanteks P300 Fans: Thermaltake 120mm (x3) PSU: EVGA G3 550w 80+ Gold Fully Modular