How to get kool aid out of my hair!?

my friend and i dyed out hair like the bottom and a couple streaks with cherry unsweeted koolaid we boiled it and kept it in for like ten minutes its been two weeks and it hasnt washed out i also have like a darkish brown hair and blonde highlights ubt i didnt do it on my blonde highlights but i want it to go away it stikll looks like i just did it it was cute in the beginning but i think it looks bad with blonde brown and red it just doesnt go right please help and i dont really want to buy anything i wash my hair with baby shampoo cause i like how my hair is with it and ive tried suave and baby shampoo and head and shoulders shampoo does toothpaste work or dish soap? which works best and please include the steps(: and will it work? than kyou