not going to lie, it can get to you if you let it. I have stories...parents coming on the ice to try and attack me...parents trying to get into the locker room, etc. No doubt, they are crazy. But IMO, if you are confident in your game and do a better then average job, there is nothing to worry about. They will chirp, but at the end of the day, you did your job.
Plus, the leagues I work in now, I can blow my whistle and have security remove a parent. I dont work anywhere without league officials and security at every game. Also, you can mostly tune it out. there is glass between you and them unlike basketball where they are a lot closer and everything echos in the gym.