I highly reccomend you to take a look at this video (that I´ve made):
How could a universe evolve from nothing? This talk by Lawrence Krauss doesn’t answer the question fully, there is still so much that we don’t know about how the universe works and how it came about, but he makes the idea a bit easier to accept – and teaches us a lot of interesting things about the universe along the way. If you want to learn more about our current picture of the universe, see this video!
Have you ever wondered why the scientists are so sure about evolution? Then this video is for you: