Resetting your PSN (PlayStation Network) password without your date of birth can be a bit tricky, but it is possible. Follow these steps to regain access to your PSN account:

1. Go to the PlayStation website and click on 'Sign In.'
2. On the sign-in page, click on 'Trouble Signing In?'
3. Choose 'I Forgot My Password' option.
4. Enter your email address associated with your PSN account.
5. Follow the on-screen instructions. You may be asked to verify your identity through other means, such as email verification or answering security questions.
6. Once verified, you can reset your password and regain access to your PSN account.

It's important to keep your account secure by regularly updating your password and enabling two-factor authentication.