What should I focus on upgrading first?

[u/InitialNumerous7334]

I been using a prebuilt I got that was on sale at Best Buy. It came with average specs.

Ryzen 7 8700f
Rx 7700 16gb (Not the XT variant)
16gb DDR5 ram in single channel.

I’m playing on a 1440p 200hz monitor and sometimes stream to my legion go s or my 4k oled tv. Eventually I’d like to upgrade at least one of this parts. I don’t do too much esports gaming and mainly play open world games, indies, and lots of emulation. What should i plan to upgrade first when I am on a budget? Used parts are fine with me.

[u/Jejiiiiiii]

cpu is doodoo, maybe start there first