anyone knows?

Im level 300 full skill tree and I cant seem to beat this stage. I cant imagine how im gonna get through the other stages. Got all the training and still lose. This is aggravating. Edit: Wow one of the Achievements is beat that guy on first try. That will probably get a bad review from me for this. Plus now being stuck with no better gear or ways of getting stronger. Now im gonna be forced to play again and beat it on the first try?...

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ya know the chosen one one, I'm gonna assume some even number like 72 hours or 100 but kinda curious what I should aim for and plan accordingly

I have reached the Inventor's Atelier and completed all quests except for "Give The Pass To The Guard" and the quest to start exploring the volcano. When I reached the Inventor's Atelier I figured something would open up which is where the guard would be but I don't see anything. I have re-clicked on all other sections looking for this quard but it seems I am missing something? I don't see him. Thanks for any help and/or directions or hints....