I Forgot My pgp keypair passphrase

Hi, guys could anyone inform me how to crack Kleopatra based created pgp key pair passphrase.
I forgot my private key passphrase and now I need to open a message which is encrypted with my public key.
Is it possible to crack the private key or the encrypted message with John The Ripper Tool?

Hello, this is highly unlikely, what algorithm did you use?

Hi alexis! I used the RSA algorithm, With 4096bits

This blog post will help you: https://medium.com/@fro_g/oh-no-i-forgot-my-pgp-private-keys-passphrase-6ec1d0228b48

Thank You alexis:innocent: