Hey "kid",
Your post had a number of situations that are worth discussing. You seem to be quite mature for your age and that's quite important because you are mostly dealing with "adult" coaches (they don't always act like adults).
Here is my two cents. As long as you are involved in this avocation, you will never stop being amazed at some of the comments and acts of coaches and some players. You can't control their actions only yours. When someone gets angry at you or your call; stay calm even if you eject them. When someone says something sarcastic; don't reply with sarcasm. When someone insists on having the last word; let them. Always behave like a responsible adult even if the supposed adult coach is behaving like a spoiled child. This way you will earn respect and never have to worry that you were the reason why a situation escalated.
You seem to be on the right track. Keep it up.