Hands up here too.

I also learned a lot from them too. Particularly later, when my mother was studying child development. A wee bit late for me, but hey, that's life.

With your daughter, think about it this way. You are her teacher for emotions, so ask:
How have I, by example, by demonstration or by specific teaching, taught her to behave?
How have I taught her to:

share with others?

do as she is asked?

consider others?

behave gently?

be grateful?

express her anger appropriately?

deal with disappointment?

If you make a mistake, say by getting really angry and yelling, do you apologise to her, explain why you behaved this way, and say you will try not to do this again? You can talk about a better way to react to feeling anger too, like taking a quick break, thinking about something else, thinking about the others point of view. Next time you feel angry, say, calmly, "I am angry, so I am going to take a minute..." or whatever you need to do.