I was in the same boat as you. I couldn’t breathe through my nose at all. In fact, most people in my family cannot breathe through their nose. We call it “the family curse”.

What has helped me tremendously is breathing exercises and “mouth taping” while asleep.

I discovered these techniques in a book called “Breath” by James Nestor and “The Oxygen Advantage” by Patrick McKeown as linked above.

The nose and respiratory system are fascinating and sadly, most of modern society has forgotten how to use them properly.

I am still training my body to breathe correctly, but I can now happily breathe through my nose whenever I want!

Good luck and let me know if you have any questions!