When did it get so complicated?

I keep thinking and trying to figure out when did life get so complicated but i still cant find an answer to this question. I think it changed around the time i reached high school but im not certain about that. Before, i just thought things would fall into place and good things would happen and bad things also, so i could learn from those mistakes and thus not commit them again but now i question so many things and i get easily confused over nonsense, it's baffles me as to what i should really focus my time on. I look at people on the street and i think to myself how violence and hate surrounds every place i pass by. The world has become a sad place to live in. If there is a God, he should be really ashamed of what humanity has become. I mean, seriously, what could he be proud of?