As a motivational speaker, investing in your skills and knowledge is the fifth step to building a sustainable business model. You need to continually upgrade your speaking, writing, and marketing abilities and stay up-to-date with the latest trends and developments in your field. This can help you boost your performance, credibility, and value, while keeping you ahead of the competition. To invest in your skills and knowledge as a motivational speaker, consider taking courses, workshops, or certifications related to your topic or industry. Read books, articles, or blogs that can broaden your horizons and insights. Join a mastermind, coaching, or mentoring program that can assist in your growth and goals. Ask for feedback, evaluation, or critique from your peers, clients, or mentors. Attend events, conferences, or seminars that can introduce you to new ideas and opportunities.