theme import question

Hey, I’m new to wordpress, and I’m trying to learn how to install a new theme to my site. I don’t know the lingo and I’m not all that tech-savvy. It said just upload the theme you downloaded into the wp-content > themes, and I wasn’t sure how to do that so I just clicked and dragged it into there. It doesn’t show up on my options though now, so I’m assuming I’m not doing something right. Help?