Daniel Castro, Senior Director of Product Design at Exabeam, shares his insights on finding mentors in design and becoming a better designer. He emphasizes the importance of being aggressive in reaching out to people, using context when sending emails or messages, and constantly learning as one's role changes. He also recommends using the lean UX canvas to accelerate the design process and focusing on understanding the business and industry. Additionally, he stresses the need for designers to take a leadership approach, considering themselves as leaders who can lead the experience of a product, rather than just focusing on their craft. He encourages up-and-coming designers to ask themselves "why should I care?" when presenting their work to executives or stakeholders, and to keep reminding people that their work is important.