How did you learn to make / edit cc? What tutorials did you use?
I already knew how to work with textures since the sims 2, but to understand how the channels work in the sims 3 I read this tuto about patterns. I also read this to know the basics for S3PE, this to learn about bump maps, this one to create thumbnails, and this one to understand how TSRW works.
I figured out a lot of things on my own, or learned from people around. Since pretty much all the best sims 3 creators are all gathered here on tumblr, if you ask something I’m pretty sure someone is going to help you out.
But if you’re getting started I recommend getting TSRW first, since that program is very user friendly.