How can I snap out of this depressed mood?

So way back in February there was a Nordic Ski Section race (high school). We have the toughest section in the state so I was pretty nervous (this was the race to qualify for state). So the top ten make it and I was about a half mile away from 7th place. I don't know what happened but I just couldn't stand up!! It could have been because my boot was nearly undone and was very loose but I just wiped out about one or two minutes away from the finish line. I landed right on my poles and couldn't get up. Not only did my team not make it to state but I placed 11th, one second behind 10th. I had made it to state ever since I was an 8th grader (I'm a junior now) and last year we actually won state. The state I live in is super competitive in nordic skiing so uhh yea. But I cried for a week straight and when kids would ask me about it at school my eyes would start to water and I would try not to cry. Still today I just think about that day and it gets me in this really sad mood and I just get really depressed. Is there anything that can make me feel better or ya know, like something inspiring?? I'm going to train super hard this summer so it won't ever happen again, but any other advice??.