budget upgrade gaming pc

So I need some help with upgrading parts of my pc.. I use pc only for gaming, so I just want to be able to play games like CS:GO smooth wihout fps drops and stutters.. This is my current build : ✦CPU ↳AMD Athlon X4 860K ✦RAM ↳16,0GB Dual-Channel DDR3 @ 810MHz ✦Motherboard ↳MSI A68HM-E33 V2...

PCPartPicker Part List Type|Item|Price :----|:----|:---- CPU | Intel - Core i3-8100 3.6 GHz Quad-Core Processor | $129.99 @ Amazon Motherboard | ASRock - Z390 Extreme4 ATX LGA1151 Motherboard | $154.89 @ OutletPC Memory | Team - T-Force Vulcan 16 GB (2 x 8 GB) DDR4-3200 Memory | $79.99 @ Newegg...