Teaching is a job that requites intrinsic motivation. Like an artist will get many varied criticisms of her/his work, so it goes with a teacher. So how do you keep it all together and improve? I say you need to keep an open mind, have a thick skin, and learn to separate the helpful from the useless remarks and criticisms that come your way. Those who offer valid criticism should be appreciated. They point our your weakness so you can fix them. Keeping a humble attitude will take you far, especially when you start with one. As you teach and learn and grow, people will be drawn to your humble attitude like moths to a light bulb. It’s very rare to find in fact. It makes you more approachable.
Criticism starts early in anyone’s life. I recall teachers I had as early as 5th grade that just did not buy what I was selling, if you take my meaning. I couldn’t win for losing around them. One teacher called my parents because I made so many excuses for not doing my work. I have to say, it felt bad but I deserved it. If I would have listened more to that 5th grade teacher about respect and keeping my mouth shut, I might have avoided a lot more trouble later on. I can’t redo my school years but I can remember the value of a critical voice in my job today. Listen to those who criticize, they tell you your faults so you can fix them. Those who praise you and recognize your natural talents are important too. I guess the idea is to accept everything.