I am having an issue, with my breathing. I tend to exhale the last bit of air, as my mouth breaks the surface. However, I read online, you are suppose to exhale all your air under water, retaining a little though, to keep you from sinking, so when your mouth breaks the surface all you have to do is inhale
By the way, I exhale through my nose, and inhale through my mouth. I was just wondering is the information I read correct?.