What did you make? I'm not sure to help you without knowing what you did. Some pictures would help.

Right now you should mainly try using the material settings to texture your models. Blender has a number of shaders for you to use. You can also use Paint.NET, a free, open-source paint program.

Now for the DAZ figures, you should probably avoid them for now. I don't know of any way to import them, and there is no native support.

P.S. I love your English!

It is better to do one thing well, than to do many things and excel at nothing.