I think you need to calm down and take a few deep breaths. This is your first test. As long as you demonstrate what is required you will be fine. Don't worry about how much anything sucks at this point. You are a beginner. You also don't have to worry about breaking your toes with a side kick. That break is done with the bottom of the foot, which has a lot of natural padding.

Hello I'm Ana I have karate classes and taekwondo classes

My friend told me karate was 50% punching and taekwondo was more of kicking and I have a test coming on July 11 2014 and one thing that surprised me was no one told me about it and my instructor said in the beginning that I will test untill he trains me and I'm about 99 % ready but one thing is I become nervous before I test and I'm onto a white belt and don't know what's gonna happen and I suck at my side kick and I have to break a board with that and I'm not scared if I break my toes or anything but my Grandmaster is super strict and wants me to get everything right and I'm not good at my side kick though I can't keep my balance unless I hold onto those bars can someone help me?