Dryness

I have this huge problem with my hair, It Is Freaking Dry. A lot of the professionals said jangan selalu shampoo rambut but my hair nanti gets freaking oily then dandrufts lagi. how? And mostly said; ones should use olive oil to dry hair. lepas gune olive oil kene basuh jugak? takkan tapakai shampoo? idk idk watto do o.O look at my hair! idk why yang bawah seems healty aje. yang atas tu yang kt tepi tu nampak kan ttbe cm gerbang perdana lawl wth but betol ttbe kt ctu cm Booommmmm! -.- i tot of curling my hair so that tanampak sgt dry and all but mcm typical aje o.O rebonding? lagi teruk. ngeh tatau watto do watto do