So how do you become an unbiased and reliable narrator? By using unbiased and reliable sources! This is easier said than done because...
...let's face it, a good amount of information is false or misrepresented to sway you one way or the other. Anyone can fall victim to false information, especially because it is so prevalent. These are sources that you may be used to seeing, and even they tend to be biased!
It is hard to find reliable sources in the age of the internet. The guide above can be helpful but it only gives an estimate based on averages. Make sure you do your own research, look into who the author/journalist is, who owns a news source, etc. You may be surprised to find that many people and organizations are a lot more biased than they may appear on the surface (and even less biased than people make them out to be!) The video below can help you navigate finding information in this day and age.