Your username is your identity online. People will make assumptions about you based on the name you choose, so pick wisely. Use a variation of your name that is easy for you to remember but difficult for others to associate with your name. Use symbols to simulate spaces and letters. Most websites won’t let you use a space in your username, but many will let you use the "_" character to mimic a space. Don’t use your birth year at the end of your username, especially if you are a minor, as it makes it very easy to identify how old you are. When it comes to password safety, the longer and more complex the password is, the better. You can follow a set of rules that a password must satisfy.