One of the best ways to protect your security is to have strong password. A good help to create safe and strong password is use Passplex . This site allows to generate random strong passwords in a few mouse clicks. Just configure password lenght, complexity , Numbers/Symbols in the password and in few seconds will be generated fresh passwords that cannot be cracked by hackers easily.
Link : Passplex
In case you are interested in how to test your passwords , read these blogs :
Test your password : Microsoft password checker
Test your password : The Password Meter