I Dont know where you put ideas.Hear me please

Good afternoon, my name is Ian, I live in Colombia, Bogotá and I'm 13. What happened is that I started creating skins on a website, then I saved them as images in a memory to see if I could put them in my Minecraft of Xbox One (not Minecraft the Xbox One Edition). But it won't let me add them. I saw videos of how to do it but they were very complicated to achieve it. I wish there was an easier option to do it. Thank you.

I love your game
Ian Vera =).