Solder wont apply over wires

Heat the wires first, not just the solder, and it will flow in just the way it shows in the video.

Ive been attempting heating them. I've read some stuff about it potentially being harmful to overheat? One video said to heat the wires for 2-3 seconds before applying the solder.

I think my Soldering iron oxidized during my first few trials. Im going to try to clean it and give it another go

Make sure that other than that small bit of solder you put on the tip to help wick, don't melt your solder on the tip moving it across the wire. Melt your solder on the wire itself away from the tip. If the wire isn't hot enough to melt the solder on its own then it isn't hot enough to bond it.

If you still can't get it to bond, add a little flux to the wire. Just make sure you clean it vigorously afterward as many fluxes are corrosive.

flux?

I have repaired these before and have experienced the same thing.

Make sure the wires are not dirty. Twist the individual wires together as best as you can, and then wipe flux paste on them. Apply the soldering iron to the wire, wait a short moment for heat to transfer to the twisted wires, and then apply the solder to the hot wires themselves near the iron. The solder will transfer to the wires on its own.

Then you can heatshrink tube over the repaired portion.

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Or you can throw away your soldering iron and get some of THESE.

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My BIL is a electrician and mentioned those. Unfortunately he was drunk and fishing when i needed help

Finally got it done though. Thanks for the help everyone