Pixie to bob haircut? and how to fade temp hair color?

Asked: Pixie to bob haircut? and how to fade temp hair color?

Ok so i dyed my hair black a few months ago with Clairol natural instincts and it said it only lasted 28 shampoos but its still in my hair! Is there anything i can do to fade it without messing up my newly grown out natural hair color?

Also im thinking about growing out my short pixie cut to a chin length bob and i was wondering how long it would take? It needs to grow 2 to 3 inches and im guessing it will take 4-6 months? Also summer is coming up so it might grow faster? What do you think?

I guess my main questions are how do i get rid of temporary hair color without changing my natural color? And how long do you think it will take for my hair to grow out?

Thank you!