Imported Model Textures and Lighting for Newbies

Hello, I am brand new to unreal engine and 3d modeling this week! Apologies if I’ve posted in the wrong place, it’s the best I could find. This program is amazing!!! But I’m having trouble getting the textures on some of my downloaded and imported models to look like the pictures and I can’t seem to find instructions anywhere.

I downloaded this stepladder and you can see it has a nice realistic metallic finish.

It comes with a bunch of different materials but only one slot. None of the materials replicate the texture in the image. They all look flat and fake. There’s no shine or realism.

If you respond, please be as simple as you can in your explanation. Many thanks!