yeah ive done the same thing once. i accidentally grabbed the powersterring fluid and poured into master cylinder and drove for like a week, untill i realised i have no breaks.
to FIX IT
i replaced master cylinder took all four wheels off, bleed them with alot of break fluid, and put everything back together and i have breaks now better than ever. honestly it breaks better than when i bought it. anyways try that and let me know how will it work out for ya.,
