How to draw Hair Realistic

Here in this video i am drawing realistic Hair.
An average human head contains around 150,000 strands of hair. Just the thought of this can be very discouraging. But, you don’t need to spend 90% of your time meticulously drawing your subject’s hair. In fact, this step can be done so quickly it might even become your favorite step. The key to adding texture is using confident, steady strokes and maintaining a consistent flow.
In dark areas, don’t be afraid to press hard.
To bring out highlights in the end, i used an eraser. You can add more or less detail depending on the level of realism you are trying to achieve.