Most people don’t know the best habits for them as singers, we grew up leaning that screaming is not good for the voice as it increases vocal fatigue but no one told us that whispering is much worse as it stretches the vocal chords and does more damage so;
Don’t shout, shouting makes the vocal cords SLAM together which causes swelling, which causes raspy-ness
Don’t talk on your cell phone outside , it Makes you raise your voice too high and strains your Vocal Chords
Don’t whisper whispering also stretches the vocal cords, which causes vocal straining + fatigue