How do you get your character to move left and right according to the screen and not the objects left and right?

Right now when I move my character it moves forward, left, right and backwards according to its orientation. I want it to move the the left of the screen despite the direction that it is facing.

e.g. If it is facing to the left and I hit the “S” key it goes right instead of down.

I assume that you have to do something with the orientation of the character according to the screen, and find the difference or something but I’m still learning and my knowledge is limited.

Thanks in advance.

When I was first learning unity I fallowed this tutorial

Not certain it will work for your specific script, but hopefully it can be of help!