I surround myself with people I trust. They tell me when I'm wrong and when I'm right. Everyone is right, everyone is wrong, and everything has bias. Instead of trying to discern what is real and fake, I think you should try to decide what you believe, and through that belief, you will find liars and trustworthy people full of valuable information. Most importantly, try to understand people who disagree with you - I grew up with a family with entirely different values and beliefs than I do. Having people around you who agree and disagree with you, with whom you feel comfortable discussing those topics, is vital to personal development and growth.