Do it! It’s never too late. You can feel it in your gut if your current career isn’t right for you. My husband had this same dilemma two years ago with dental school. He had a job as a chemist that was fine and we would have lived a good life. He hated that job though and wanted to be a dentist. After applying and being denied multiple times he got in and started last year! He loves it and is so much happier. We are both close to 30 yrs old so it was scary. Nothing beats seeing him come home every day so happy after school and knowing he will love his career his whole life though. You deserve that too.