This sentence is too long, please abbreviate it.

We reached an agreement on the new project yesterday.

They reached an agreement on a new contract.

He learned how to make a potion from an old book.

He achieved an amazing Yakuman, surprising everyone.

I plan to go to the town hall tomorrow.

He is the driving force behind this project.

Is this translated text accurate?

He made a firm promise to meet me tomorrow.

He always bothers about me.