I'm sure I will be shot down in flames, but before the comments start: this is a question about an individual wanting to think optimistically; not the whole human race. I have suffered clinical depression. I am well educated, a 1st world citizen with a partner who loves me. I have accepted that whatever I personally want for the future of humankind, I am but one voice: there are millions if not billions who don't care, or just follow like sheep. My ability to influence them is drowned out by louder/prettier voices. What I can do is invest my energy in my family and friends. It will not save the world, but it will (hopefully) make their lives richer. I do sincerely believe in the fundamental "goodness" of humans, but we have become so distant from out immediate real friends/family that we sometimes care way too much about Will Smith (or whatever the current meme is). We also trust too much: we trust the media (whether mainstream or alternative); we trust the example given to us by our "heroes" (often media species). Critical thought is the fundamental "cure". Once we educate ourselves and all around us how to think critically and generate valid conclusions, I think everything else will follow. To the OP directly: be in the moment. You have a good life, about to welcome a new life into the world. Will you let her see the glory of life or the pain of your future worries? See the world as she will: with open eyes and an open heart; ready to accept love, questioning about everything. Be ready with honest answers. But be ready to say you do not know when applicable: then research together, grow together.