Generate a full detail guide on how to turn a hobby into a business. The guide must be a realistic roadmap. It should include detailed sections on: 1. Market Validation: How to know if your hobby can actually make money. 2. A guide to pricing your craft or service (moving beyond 'hobby prices'). 3. The necessary steps for legal setup (e.g., registering your business name, opening a business bank account). 4. A simple marketing plan for your first 10 customers. 5. How to manage the transition mentally from a passion to a profession. Please include a disclaimer to consult with financial and legal professionals.