Yes, the white balance is that far removed from the metering mode you use.
I have mentioned mixed lighting a couple of times, and wonder if you understand what that refers to.
The lowest cost option available often makes it virtually impossible to get good results. However, that doesn't mean there are not DIY, low cost options, like using a bed sheet and incandescent light bulb in a household lamp, that can be effectively used.
However, using the low cost, or DIY options requires having a very good technical understanding of how photography works, so you can maximize using camera/lens/light features/functions/properties to mitigate any of the short comings of the lowcost/DIY options used.