Thanks for all the information.
To be honest, all this about skins seems so complicated and detailed that the part of my brain that was thinking about it overloaded, caught on fire, and burned out.

IRL I take about 3 seconds to decide whether I like an outfit - this seems like it will take hours and hours of looking for a skin. I still want a skin and will use all your great suggestions and would love some guidance, but I need my brain to stop smoldering first.
One very kind person showed me about 10 different skins she had. I didn't really see a big difference except for skin tone and facial expression. She would point out that
this skin is more/less
this and
that skin was more/less
that. I didn't see this or that, really.
