just extracting, not bruteforcing string inside of picture

well, I thought i can include string for bruteforce in picture and use stegseek but it is only extracting string, not cracking, if I add -p it demands password so, command is not correct that we can write rockyou.txt or my own file with my passwords.

this is not working with my passwords for string inside picture, it pushed me to type password after P:
steghide --embed -ef string.txt -cf 01.jpg -sf 01-steg.jpg -p $(shuf -n 1 passwd-2016-2019-2025.txt)
time stegseek 01-steg.jpg passwd-2016-2019-2025.txt
I got file with string but not decrypted string with my 400 password list from 2016-2025

so, it is extracting, it is not bruteforcing string inside of picture....