Salt on the wounds Living World Season 4 achievement

Hello,

I am trying to do the "salt in the wounds" achievement (see here https://wiki.guildwars2.com/wiki/The_End#Achievements ) but either I'm very bad or this is very complicated (almost impossible ?) to do alone.I have seen a lot of people complaining here on the forum, but none of the "solution" worked.

So if you can help me on that (even by adding me, and we will try to do it as a group, they says it's easier) add me in-game (EU) and let's do this!