I already tried it with 10 million combinaison password and don't find anything.
maybee i'm doing it wrong.
Can you explain how you will do it if it was yours? Thanks in advance.
All depends if you have any clues, what the password is. If you know nothing, even length, it is very difficult and the most probably not worth to do it.
If you have any knowledge about password, you should thing what are you sure about and what is doubtful. For example you may be sure that length is 10 characters, or you may think it might be 8-12 characters.
Then think if you build your password from a "real" words, sentences or numbers. Was there any "template" of passwords you used in the past (like name + number)? What mistake was done? uppercase/lowercase, typo etc.
But if all you know is that - for example - it was 16 random characters, it does not seem to be doable...