What they should look like
One of the first questions you should ask yourself when it comes to your passwords is this:
Could I guess it if I had a few hours?
If this is the case, then you have a problem. From a cyber security point of view, tools are often used which run a list of commonly guessed and used passwords against your username to try and “jimmy” the login. I would recommend visiting this website and looking through the lists to see if your password is anywhere on there. (Hint: use CTRL+F to search for it. Just be sure to close the little search window when you are done). Once you are on the website, click the folder named “Passwords”, then click any of the text files that come up. I personally recommend looking through any of the files with “rockyou” in the title.