Worth Fixing, or Start Over?

My current PC (built pre-Covid, 7-ish years old now I think) has been nonfunctional since I moved for reasons I'm not sure of yet. I'm inexperienced in PC building, and before I try to dive into testing & repairs, I wanted to see if it's worth the effort on my current parts or if I should buy some upgrades and work with those instead?

For context, if it makes a difference, I would be using this for things like gaming (FFXIV, GW2, BG3) and Blender / Photoshop

Current parts list: https://pcpartpicker.com/user/SarahBean/saved/6Qj4nQ