Angela Duckworth developed a self-assesment called the Duckworth Grit scale. To reflect on your grittiness, participants are expected to complete this self-evaluation. 

There are no right or wrong answers, so just answer honestly, considering how you compare to most people. At the end, you’ll get a score that reflects how passionate and persevering you see yourself to be. 

Here’s the link to take the assement: https://angeladuckworth.com/grit-scale/

Additional Resources: 

https://getlighthouse.com/blog/grit-skill-interview-for-how-to-look-for-it/