What should i upgrade

[Nazea]

hye guys.
i got $200 in my pocket
what should i upgarde. i focus on a better gaming experience
here is my spec:
intel i3 4170 3.7ghz
Msi gtx 750 OC non ti
b85 pro gamer motherboard
8gb ram
1tb hdd
600w power supply

 

[Lucky_SLS]

A gpu. A 1050ti would be a good start.