stream crash

I currently have a PC (AMD Ryzen 5 2600, NVIDIA Geforce GTX 1660 TI, 16 gb of ram ddr4) with a Gamdias Kratos M1 550B power supply. This computer is prebuilt and I've had it for around a year and a half with no issues as far as PC crashes goes, but I do often experience freezing of games and...