Hi Im 22 Year Old. And My 35% Hair Is

hi Im 22 year old. and my 35% hair is white and now my bread is also start white . please provide me any medicine for my bread white hair .
my daily ruteen is normal 8 hour working and 8 hour sleeping . but one think i m not drinking more water im drinking less water.
and white hair on my chin side on my bread

please advise me