How to get permanent hair dye out of hair ASAP?

So i attempted to dye my hair as a blonde ombre (i have brown hair.). The first time i dyed it, it was too dark of a blonde, two days later (right now) i dyed it again now im super mad cuz i thought dubble coating my hair would make it lighter than the rest, but it did nothing for me, so all the hair on the top part is blonde! And really crappy/patchy looking (cuz some parts i also dubble coated) especially the top front part withc is really blonde, and it looks horid! I used a garniar hair dye and if ur wondering if it works, well it does! Just dont dubble+ coat it, i spent 2 hours waiting to see if it would change a color, it did not, and i gave up.

So now i wanna just chop my head off because of how bad it looks. My mom is totally PO'd at me and isnt giving me any support at all. So now im really scared to redye my hair cuz im pretty sure itll still be uneven cuz some blonde spots would turn really light brown while others might/not just be the brown i want, and i really dont need to cry about messing up my 3rd dye.

Where i live, well r hair cuts r like the most expensive in the US (its like $75 just for a normal hair cut!). Yah, so imagine dyeing my hair, plus the customers that walk out of the salons that we have, well, lets say its not worth the $75.

So mainly, how do u get permanent hair dye out of ur hair ASAP????!!!???