I have read so much that I don't know myself anymore?

I dropped out of high school (well, graduated early) because I had social anxiety. I spent most of the next two years after that alone in my room on the internet from the time I woke up until the time I went to bed. I would just sit at home and Google stuff, read about it, follow those links, read more, Google about things I had read in followed links, and so on. I read about so many things that it's starting to come full circle. There are ideas that I think are new and I go to Google them and realize I already Googled it like 6 months ago. I have religious problems and I can't pick a certain interpretation, because I've read too much from both sides to believe just one of them. And the same goes for pretty much every other topic. I've been on forums from the extreme sides of every issue, and I really don't know what my opinions are anymore. I think it's actually driving me insane. And I would go to YouTube and watch doentaries from all political standpoints, and videos of the "good guys" doing bad things. When I was like 14 or 15, I would sit at home on AIM and IM kids from school, and they would send links to videos of people being beheaded. I have seen so much that I don't know what to do anymore and I can't forget stuff. I'm 20. What should I do?