Considering how bad the average GW2 player is, it's not just you. But the game isn't difficult at all, at least open world content. If we're talking about raids and fractals, that'd be debatable. And strike missions are meme-tier.
Between players not knowing what any of their skills and traits do, or how to CC mobs effectively, leads to a disparity between "good" players, and the kind of player that just auto attacked (or boosted) his way to 80.
The fact that most people bring raid/fractal builds into open world doesn't help either, as most builds require certain boons and healing to be effective. Some professions are also way easier to play than others. An example being scourge and scrapper, which are nigh unkillable with parasitic contagion and impact savant traits respectively.