Substance 3D Painter Testing

I decided to use some time and sculpt an undead bust. I made all of the sculpting detail with clay buildup. At the time of doing it, I thought that it would be cool but later, just by seeing the final product. It really wasn't anything great. At least it doesn't look good in Blender.
The reason why I don't texture that much anymore is because I just can't really handle different colors well. I know how to color a human face but then when the thing is not a human, it is really hard in Substance Painter. I cannot find much knowledge about the subject, which is just sad.