Why does my hair get SOO greasy?

Im 16 and i have that same problem, i just don't use conditioner. If my hair ends feel extra dry then i put leave in conditioner just on the very ends. Im Italian and my whole family has really oily skin so i have to wash my hair everyday too. :/ and try asking your mom to let you use semi-permanent hair dye it lasts like two months and if you don't like it you don't have to worry about it being in your hair for years like permanent dye.