While his childhood was pretty good, Thor still fought many foes. Loki would always try to trick him into jumping off a cliff.
Thor disappeared in the middle of the war and came back at the end, realizing that Steve Rogers was there. He saw Thanos and remembered when he said “You should have gone for the head” and aimed straight at his head. Tony realized it was a trap and stopped Thor, leaving Thanos an opening to attack. He slammed Thor hard into the ground, angering him enough to attack him again, but Thanos 0.1 hit him. Thor, full of rage, used his godly powers and shot lightning out of his hand.