This is the worst! I dyed my hair a warmer blonde and I already am a blonde so I thought nothing bad would happen, I was wrong. My hair turned gray and purple. The even worse thing a about it is that it is permanent and I am leaving in two days for a very important meeting and I can't show up with purple hair

Sweetie, I know you're devastated about your hair, but it will be difficult for you to fix it yourself. It would be best for you to go to the salon and have them do a corrective color on your hair.