You don’t need to be scared of the repair,just remember to unplug the battery.I will post the link below for the screen.
Samsung Galaxy S6 Digitizer:https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwii2e23icrvAhXNslkKHbrLCekQFjALegQIAhAD&url=https%3A%2F%2Fwww.amazon.ca%2FDisplay-Screen-Digitizer-Assembly-Samsung%2Fdp%2FB08FM8TL95&usg=AOvVaw3VLXTHIAnR9tNDFckuVfuo