This is the foundation of how I teach the 400m. Ask 100 coaches and you’ll get 100 different answers.
The key is to run it the same way every time. It’s like tying your shoe for the first time (not so good), until now (you got faster at it).
Get out there and be consistent and breathe in your nose, fill the lungs up, and breathe out the mouth the whole time. 😁
Good Luck
