How NOT to do a 540!

Last winter I experienced something that I hope no one else will have to endure. I was out of the season for 2 and a half weeks in February. I missed some of the best day to ride of the season, thanks to a failed attempt at a front side 540. So I was at lakeridge ski resort in Uxbridge with my school and I was really feeling my front side 360's but my buddy convinced me to go for a 540. I prefer doing my spins backside because on 360 that allow you to spot your landing and I'm used spinning off my toe side. But I knew that to spot my landing I'd have to go front side. So I decided to just man up and go for it because my other friends wouldn't and I wanted to show them how it's done. Big mistake I took off, clipped an edge and ended up a bit diagonal once I passed 360 and ended up 450 my body was basically upside down and I came down right on my shoulder. I ended up almost needing surgery but got off with a month of physio therapy, a sling for 2 weeks, and one messed up shoulder.