Answer:
That's okay. I have the solution to your problem! The answer is persistent.
Explanation:
Willful: having or showing a stubborn and determined intention to do as one wants, regardless of the consequences or effects.
Bullheaded: determined in an obstinate and unthinking way.
Firm: strongly felt and unlikely to change.
Persistent: continuing firmly or obstinately in a course of action in spite of difficulty or opposition.
So therefore, the answer is persistent.
