Beyond your birth chart, astrologers use "progressed charts" that symbolically advance your chart one day for each year of life. Your progressed chart at age 30 uses the planetary positions 30 days after your birth.
Your progressed Moon sign changes approximately every 2.5 years, reflecting evolving emotional needs. Your progressed Sun sign can even change during your lifetime, representing major life chapters.
Many people notice they identify more with their progressed Sun sign as they age, showing genuine personality evolution over time.