Start with school books, doing so you will learn the basics first. If you jump to sophisticated videos, you wont' learn anything but just being informed. The typical "knowing all" in these forums can mention lots of new scientific advances but can't answer questions challenging his knowledge, and the reason is because he just read science releases and watch science programs but never have put hands in a small experiment or understood the basics.
If you jump to videos showing you the recent discoveries without knowing science, then you are just enjoying entertainment, and there is nothing wrong with that, just that you still don't know science.
Science is an ordered method and learning it requires the same.