Need help building script

In search of a consultant being highly and specifically experienced in screenwriting l. I am working on a script that will be a bit of a dramedy but more emphasis on comedy. Style wise would be most comparable to the tone of the film Booksmart. I would love to meet and talk with someone experienced in building characters and know how to educate me more on the fundamentals of how the story should flow in order to assist me through my initial writing process. I have the initial plot mapped out but I want to be very intentional about the way the story reveals it’s self so I need someone with a lot of knowledge in screenwriting and the film industry as well.