I need help... Badly...

I need help... Badly...

I wanted to see how to use Kenney's 3D assets to make a game, and while things like houses and trees were okay, my biggest problem is using 3D characters. I have no idea how to use the skins and put them on the models. All I have is the latest Blender, but no matter how many tutorials I find, none of them seem to work for me. If anyone can help, I would appreciate it.