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.
When you make use of Wikipedia's desks (Help desk, Village pump, and the Reference desk), please consider putting some time in as a volunteer by reading and answering some questions at whichever desk you think you will be the most helpful. Remember: the Help desk always needs help, and questions asked at the Reference desk span the breadth of all human knowledge. You're likely to know the answer to some of the questions.