perseverance
//ˌpɜːsɪˈvɪərəns//
Noun
1
Continued effort and determination to achieve something despite difficulties, obstacles, or discouragement.
Her perseverance helped her overcome many challenges in her career.
2
The quality of being steadfast and persistent in pursuing a goal or purpose over a long period of time.
Her perseverance in learning the piano finally paid off after years of practice.