Hair dye disaster! Please help!!?

Dont listen to her. You will not fry your hair going darker. Its not possible. Buy 2-3 more boxes and apply it all over at once but make sure your hair is THOROUGHLY SATURATED with the color, especially on the ends. You might want to go with natural instincts since you are going darker since it is ammonia free and low peroxide volume. Ammonia and peroxide is drying and you dont need it for going darker