The relationship between a stepdad and a biological dad can be everything from friendly or friends to the other extreme of despise or outright sabotage.

"The problem is not the problem. The problem is your attitude about the problem."  - Captain Jack sparrow.

For every problem you face, there is an action or behavior within your control. If you place blame and point fingers, you are missing an opportunity to give your attention to a solution that lies within you.