I'm not at all suggesting you give up your viewpoints or your beliefs. Feel free to hold on to any point of view you want. And continue to argue and fight for them. Just don't claim that yours are true and that someone else's is false. None of them are "the truth." And it's fine to prefer one to the other.
Life is a game just like all the other games. The only difference is that life is the only game that we don't realize is a game. Each of us has made up, largely unconsciously, a set of rules (our values) -- based on our worldview and our beliefs -- and we think our rules are right and inherently true.