Actually, there is no need to worry about painting.
I am also a kindergarten teacher, and I have never learned painting since I was a child, and my painting skills are all taught by myself at a later stage.
Children's paintings are characterized by bright colors, liveliness, sunshine, comfortable and positive appearance.
You can learn from simple stick figures, learn slowly and get used to it.
Let me show you my work, and you will be successful in the future.