Dont be too hard on yourself. Reveal trailer was likely faked. I distinctly remember praising the night time lighting, complete darkness, which is all gone replaced with a blue filter. They also used the best looking areas in the best lighting conditions with carefully crafted cutscenes masked as gameplay.
Kojima did something similar. Showed cutscenes almost exclusively. or with fake gameplay angles that hid all the issues with the draw distance.
Like in the water gif below. The time of day and haze in the distance masks the poor draw distance and LODs. The desert gif has a cinematic camera angle and again uses haze to mask the draw distance. I have 180 hours in the game, and never got it to look like that. The last gif with the fantastic rain effects is clearly doctored. Rain does not look that good in the game.