Mouth taping, Mouth breath

i'm 16 years old and for all my life i'm mouth breather. For a year im trying to developing a habit to breath through nose also i tried using taping method with tape (i know it was bad but) i woke up without tape it was on the wall.

Should i try use taping method ? even if i don't have habit to nose breathing

Is there any chances to die i mean through for example strangulation??