Unfair civil case hearing!

What, if anything, can I do if a judge didn't give me a fair hearing in a civil case? My cousin sued me for damages done to her car when my boyfriend accidentally backed up into her car. I didn't dispute anything but the fact that she also included in her estimates previous damage done to her car. I told the judge I had pictures to show that would give him a better idea of the specific damage and he would not see them. My cousin also stated that there was previous damage but he still gave her everything that she asked for...can someone please help? Also, why is it that a judge can speak to you anyway he likes whether provoked or not but if someone speaks to them in a way they do not like they hit you with contempt? The judge was very nasty to all parties involved from the door, why do they get away with that.