Should I upgrade my graphics card/ if so which should I use?

[EverythjngBlack]

My build consists of

RX 570 Strix
Ryzen 5 1600
16GB DDR4 3200mhz RAM
MSI Tomahawk B350

Should I upgrade and if so which should I use. I like to play high end games/CS:GO/etc. and I have 2 monitors (one 60hz and one 144hz) both 1920x1080 and would prefer more FPS

 

[DSzymborski]

What's your budget and what's your current power supply?