1. All people have opinions about teachers and how they should teach. Be true to yourself and listen to your own opinions and ideas first. Fresh motivated teachers are ideal for students and schools.
2. Don't burn yourself out too early. A work and life balance is essential for longevity in this occupation.
3. Nobody knows it all. You don't need to have people think you do either. It's okay to say you are not sure, or that you need to research that idea further.