Warm up your voice daily
Practice lip trills and humming
Use sirens to connect registers
Start in a comfortable range
Gradually extend range by semitones
Maintain good posture
Breathe from the diaphragm
Keep the throat relaxed
Avoid pushing or straining
Stay hydrated
Rest your voice when tired
Practice scales regularly
Work on chest voice and head voice
Blend registers smoothly
Use proper vowel modification
Sing softly before singing louder
Record and review your practice
Train with a vocal coach
Sleep well and manage stress
Avoid smoking and irritants
Stop if you feel pain or hoarseness