If you have the stock Creality metal bracket for your BL Touch then the offsets are -44 on X and -9 on Y. If you are using our Unified firmware then enter this into the CUSTOM PROBE section after you uncomment the CUSTOM_PROBE mount option in your printer section. See the BL Touch section in the firmware configuration file itself for full details on how to set up the firmware to use a BL Touch
#define NOZZLE_TO_PROBE_OFFSET { -44, -9, 0}