After an 18-year career, I left the film industry, not wanting to become one of those child-actor cautionary tales.
When I was 14 years old, I went on location to film 'Mrs. Doubtfire' for five months, and my high school was not happy. My job meant an increased workload for teachers, and they were not equipped to handle a 'non-traditional' student. So, during filming, they kicked me out.
If you have someone in your life that you are grateful for - someone to whom you want to write another heartfelt, slanted, misspelled thank you note - do it. Tell them they made you feel loved and supported. That they made you feel like you belonged somewhere and that you were not a freak. Tell them all of that. Tell them today.