How to find out PS4 password if you are still logged in?

Moin, I have a problem and although I'm still registered on my Ps4 account and I have the email, I don't know the password anymore. A buddy wants to share a game but I don't know the password anymore and that's why he can't log in. I also have no access to my email and I don't know the date of birth that I have given. Is there any way to find out the password since I'm still logged in?

No. Then your account is almost useless. Even the support would not be able to help, because you entered the wrong date of birth and don't even know that anymore.