I think I found two great videos on youtube on the dos and don'ts of password creation. A real must watch. I encourage everyone to watch these and then consider if your passwords are really safe.
https://www.youtube.com/watch?v=7U-RbOKanYs Also https://www.youtube.com/watch?v=3NjQ9b3pgIg
If you don't trust my link the video is called: "Password Cracking - Computerphile" also "Password Choice - Computerphile "
If you know of a better video on password creation plz post it.
Edit: would also like to recommend everyone watch "How NOT to Store Passwords! - Computerphile" and "Security of Data on Disk - Computerphile"
Well actually, password is so secured nowadays, you need to have an advance mechanics to unlock or to break passwords. But since password is so secured already, we can no longer break or breach passwords by just using crackers online. Compare it to bitcoin, you cannot hack bitcoin accounts because bitcoin is so secured already.