What to upgrade?

I have a PC that I built back in 2020 with a MSI Z490 mobo i5-10400F RX 7600 2TB WD Black nvme 16 GB RAM @ 3200 PSU Corsair bronze 550W Trying to think of the most cost effective way to upgrade- it’s a 1080p hog… but that’s all.

I’m looking to play in 2k or better at 60 fps or better

Kind of gotten to the idea of just selling and starting from scratch. Advice needed!!!