Upgrade vs new build

Yo wassup yall, bored at work so I’m writing this knowing some information i won’t have access to atm but i digress. Been plotting on building a new pc or simply upgrading my current. Currently have a sky tech shadow 3.0, a few years old, and have never built a pc before.

Specs:

GPU- Nvidia GeForce rtx 3060
CPU- Ryzen 5 3600
Ram- 4x8 GB DDR4 ( 2 separate but matched pairs, task manager says my speed is 2133 MT/S
Mobo- Asus prime B550 Plus AC-HES
Power supply- Unsure atm, google says my build either comes with I have either a 600W 80 PLUS Gold or baseline 500W certified PSU
Storage- WD GREEN SN530 1TB

From the slight research I’ve made, the priority of upgrades goes CPU->RAM->GPU. I think I’d settle for upgrades for now as I’m not as worried about aesthetics as i am performance. I mainly play FPS games (OW, apex, valorant, siege) and quite often run some intense Skyrim mod packs (currently playing lorerim). What does the comm here think and what recommendations can yall make for me?