First, I would say, Beware: Aspiring writers get bad advice. I know I heard bad advice. I heard conflicting advice. Trust your instincts, especially when the advice you’re given isn’t sitting well with you. Ask your questions of more than one person.
Follow basic rules. Learn the building blocks of writing: What are the parts of a scene? The parts of a sequel? When and where should backstory be included? Understanding the foundation makes the story flow.