Scared that I have to repair my Galaxy S6 Edge than just the screen

Hello, I am in a serious hard situation right now and I'm trying to look at my options to see if whether or not if my cellphone S6 Edge just has a glass problem or something else from this video here: this is my cellphone by the way in this video that I recorded 20-30minutes before this post. Anyway, does anyone know if I might have to replace more than just the glass and telling me if this is a LCD and/or Digitizer problem from this video? But is this a digitizer problem? I'm scared that I might have to replace the LCD and digitizer too. I can hear and receive calls and touch stuff on the screen, it's just messed up and I don't know if that's the glass problem because there is a black spot mark on the screen when I dropped my phone the other day which is a major drop again since I've owned this phone for almost 3 years. But please let me know if I need to replace just the glass screen and if it's another problem like the lcd or digitizer. Thanks.