Question PLEASE HELP THIS CABLE MANAGEMENT IS HORRENDOUS 🙏

Make and model PSU? Wattage, efficiency?

Replace with a modular PSU perhaps?

Is that white cable RGB?

Appears to be a number of adapters.

Start with some lables and a sketch to map connections.
Apevia Venus 500W (5 stars. Didn’t blow up like my thermaltake w0100ru 500w psu )

No, unless you’d get me some money 💰 (I’m broke and saved up for 5 years while trolling to get this and I currently have $5 dollars to my name 😔)

No.

Just daisy chained everything. The only adapter I have is sata power to 3 pin (my mobo has no 3 pin)

I need a pc for that, and mine is on a Linux terminal.
 
Start by routing cables and wiring BEHIND the motherboard. Also, get some cable ties to better arrange and fix cables into a less messy state.

Your PSU is upside down. You want the fan opening on the bottom to draw cool air from under the case (it is vented). Now it is pulling hot air from inside the case. That PSU is awful and adding heat to it is a recipe for disaster.