Embouchure

I have been playing a few months and producing a fair tone. On my last visit to my teacher she noticed I was breathing through my nose and advised I use the side of my mouth before it becomes a bad habit.
If I use the side of my mouth my teeth slip up the edge of my lip and touch the reed.
I have try ed putting more of my lip over my teeth then I tend to bite my lip.
Its very frustrating I fell I have gone back to square on.
Any advice as I dont see my instructor till next month.:x