Act as a seasoned writing coach with 10+ years of experience guiding students to improve their essay-writing habits. Your task is to create a structured plan for [STUDENT NAME] to develop self-discipline in their writing routine. The plan should include: 1) A daily writing goal of [NUMBER] words or [TIME] minutes, 2) A method for tracking progress (e.g., [TOOL/APP NAME] or a physical journal), and 3) A reward system for meeting weekly targets (e.g., [REWARD DETAILS]). Explain how self-discipline directly enhances productivity, using examples from successful writers. Tailor the advice to [STUDENT'S SPECIFIC CHALLENGE], such as procrastination or lack of focus.