I dyed my hair and i regret it!!!

Hi there! I go by Beatle online, for me, 2day iz Sunday and the Kingz birthday iz 2morrow. on thurzday i dyed my hair half black half pink, my hair iz naturally blonde so it should have worked perfectly, but the black came out green!!! I now have to strip all of the colour out and ruin my hair doing so before school on tuesday D: luckily, the dye iz almost out. i have used head and shoulderz (yez, im aware that im damaging my hair severely) 4 timez in the past 2 dayz, 2 timez everytime i shower. the black haz almost completely gone, but now im worried about the damage i have cauzed my hair!!