Why you need a mentor Why a mentor is important: If you’re feeling stuck, struggling to find motivation to move forwards alone, it’s time to find a mentor. Choose an experienced mentor in the habit you need to change. A mentor will support you, cheer you on, provide feedback, advice, and help you define and reach your goals. It can be a key relationship in your life and one that has the potential to impact your health & fitness choices significantly. Mentors play valuable roles in clients lives.