hair dying

hello everyone! well i have a problem,i have naturally dark rown hair and i go blonde,i know its bad but i use the stuff you use to hightlight {or streck} your hair.thats the only way i get my achived blondness but this time its very very brassy and white in some parts. i nee some info on how to darken my hair perferrably a home remeide,but anything will help,it sure wont hurt this hair im orange white and brassy.thanks everybody,ericaps-if you got any stretch mark helpers too i sure could appriciate that,i have an infant son. thanks