Be aware of confirmation bias in order to minimize it. If you deeply want something to be true, you’re more likely to stretch truths to aid your argument. You’re looking for reasons to be right about something and are more likely to ignore facts that don’t match the narrative you have in your head. Don’t do this. Try to keep an open mind. Try to listen to other’s ideas and truly understand them before taking a stance on the subject. And when you do form your own opinion, don’t cling so tightly to it so that you cannot fathom changing your mind (even when new information presents itself).