Suggestions for a newbie

I’m very new to this game, can’t really decide what to play. I’d prefer to play on hard but it seems I’m getting destroyed though. Is there a class/ build set up that’s good for new players to get through the story on hard? I don’t really care too much to farm gear on Ultimate but that might change when I get to that point. Thanks in advance for all of the info!

Soldier is pretty tough, i completly steamrolled the game so far with my Witchblade 2h bladearc build and im Lv70/ultimate.

Summoner conjurer, Lazy Pokemon Master guide should be very helpful