When I was a child someone said, "If you have a problem with everything, it's not everything, it's you." I thought about that a lot. Turns out, they had a point. I'm definitely the problem. Even knowing that, I feel very comfortable as who I am when I'm alone. I just feel guilty existing around other people.
I used to think about the things I would change in the world when I was a child too. Of what I would do if I was God. Whether or not I could ever be. What if I became part of God when I died. That kind of nonsense. One day I thought: my knowledge is limited, my power is minimal, my benevolence questionable, and I believe the things that I do. If overnight I somehow became omnipotent, omniscient, and truly good (assuming there's an entity like that which already exists) nothing would change. No one would know. Because then I would grow into an understanding of the design of all things and why things are the way they are, and it is only in my limited human understanding that I could perceive flaws in the universe.
There's this song called Better Off Dead by Bad Religion which answers your question really well. There's a cover of the song by another band called Anathema but it's the lyrics that matter most in this context.
