Never share your passwords to anybody.
Your password will be used to sign in to websites, apps and anything that requires an account to use. Your password should never be shared to anybody because thats a risk of personal security.
Whats a good password?
When creating a password you should know that a good password consists of 14-16 letters using both upper and lowercase letters, numbers and special characters. A longer password makes it significantly harder for hackers to guess your password. You should also keep in mind not to use information other people know about you on your passwords. For example if your password has your name or even your pets name it will be much easier to guess. Also you should avoid using real words on your password because a password consisting of words is much easier to guess.
Two factor authentication (2FA)
Its often possible to use two factor authentication for your accounts on the internet. What two factor authentication does is that it sends you a confirmation when logging into a service via your email, a text message or authenticator app which often uses a qr code scanner. Two factor authentication will increase your account security significantly because if hackers want to break into your account they will also need to have an access to your phone or email.