In the video titled "If I could speak to myself at 18: 7 lessons you shouldn’t ignore" by Tyson Durfey, he shares invaluable life lessons and insights that he wishes he could tell his younger self. Tyson emphasizes the importance of maintaining a positive attitude, changing one's approach when faced with stagnation, and the significance of doing things you dislike to build confidence. He also touches on the ripple effect of achieving one's dreams and how it can impact others. Tyson encourages viewers to stay focused on their goals, put on mental blinders to avoid distractions, and to "burn the ships," meaning to commit fully to their objectives without looking back. The video is a motivational call to action, urging viewers to take control of their lives, stay determined, and achieve their dreams.