How to totally play DOOM Eternal

Step 1: Find your preferred difficulty.
Step 2: Optimize your controls for your hands.
Step 3: Check all your settings, make sure you don't have anything harming your performance on.
Step 4: Succeed, here I have a little demonstration of what it looks like to succeed on Nightmare in the beginning.
https://www.youtube.com/watch?v=5obHX9ZxmTw