How do i set my camera display to default

At the beginning of the game it lets you get to change the camera to hoe wide you want it and how bright the screen is.

I chose to widen my display screen, and now just NOW i realized that things are cut off the screen from where im suppose to see them.
How i know this? I was watching Youtube vids and comparing my screen to theirs

long story short

HOW do i set my Screen back to normal/defult so i can see everything?

Cant find it in the options