help

[Brian Ingbritsen1]

Ok well i dont knw what i did but i nessed something up..now i ve been rooted for quit sometime now..it was just a few days ago i been trying to fix this..long story short..i have TWRP has my custom recovery and i am running a stock rom where i flashed a bootloader and kernal also with the stock rom 4.3 for my att galaxy s3 ..now root checker is saying i dont have root access and also supersu is saying i dont have an su binary installed but how is it that i dont apparently have root access or su binary but i got TWRP and am running a rom..PLEASE HELP ANYBODY IVE BEEN TRYING TO FIGURE OUT THIS PROBLEM FOR A COUPLE DAYS NOW!!!!!