So i have installed Cyanogenmod 10.2 using Clockworkmod Recovery, which went fine.

However now I am unable to get rid of CWMR. I tried flashing TWRM, but CWMR persists.

Even worse, CWMR shows the data on /sdcard from my old ROM. it is not up to the actual sdcard contents. and whenever i try to enter any directory it still shows the same data again. it's like going into a loop.

the only exception is, that when i enter the directory called "0" it shows the actual data of the new cyanogenmod installation.

is it possible that cyanogen actually installed itself into /sdcard/0 and the old data is still present in /sdcard/

this would explain why i am having only little space on my sdcard free.