Consistent compliance with Wikipedia policy is more important than your personal beliefs. Inconsistent compliance is a good sign of activist editing.
For example, if you assert something, and are presented with countering evidence from a reliable source, do you consider changing your position like a reasonable editor, or do you ignore it to argue your position?
When you join a wiki community, be a constructive editor.
As a new editor you may be wondering, "How can I help?" and be overwhelmed by the extent and scope of the entire Wikipedia project.
An introduction for new contributors is available at Help:Getting started which provides a self-guided road map of tutorials, introductions, training topics and other resources allowing you to learn more about how you can help improve the Wikipedia project.