Hair is something that needs continuous care. Try to first figure out why there is hair loss of such a degree as to trouble you. At your age you should not be suffering from excessive hair loss. Improve diet by including dry fruits like almonds and dates 2-3 everyday, lots of vegetables and salads of all kinds. Eat a wholesome diet and avoid all junk, bakery, spicy and fried food. Apply oil regularly, reduce the use of shampoo, use shikekai instead.apply eggwhite once a week if possible. Keep it on scalp for 10-20 minutes and wash off with lukewarm water.
Next Steps
if all this does not help then seek treatment.