What’s the difference between those?

People often mix up scene and emo into the same category, but really they're completely different. emo is a very depressed person, who is typically stereotyped into dressing in dark clothing and listening to screamo. They also often cut themselves. But they can seem like a happy person on the outside, yet be going through an inner struggle on the inside.

Scenes are a style. Skinny jeans, bright colored clothing, choppy layered hair, and listens to screamo o hard rock. There are many types of scene; here's an amusing website that gives a harsh but true look on the different styles link

Ah, goths I unfortunately don't know much about, as I am young and there are not many goths anymore,at least at my school. I hope I cleared things up for you.