Suggest Nutritional Diet For The Loss Of Hair

I am 19 yr old male and i am masturbating since i was 14... average 4-5 times a day..?
my hairs have become too thin and tend to fall everyday... sometimes it also feel shaky in head.... also feel sometimes blindness.... how to cure this.... plz help... i can't take any medicine as i can't take it in front of my parents.. it feels awkward.. plzz help.... what nutrition should i take....
can i regrow back my lost hairs and can now my hairs become like normal ones.. plz be serious.... can i get back my hairs tht were lost??