Guild Wars 2

ok ty, without shortcut this level is pretty much impossible :/
who thought of that tower with 5 floors and the traps everywhere?.. this is so frustrating.
and the golden gong at the top and the way down..
better take the shortcut guys or spend 2 hours of your life crying. kitten you anet!

Ok… where do i need to go from here?
over the little platform in front doesnt seem to work.
anyone who had the same problem? or a link to a video maybe?
thank you