Need Help to frame the logic in DAX measures

[ayanmazumderpbi]

We'd like to compare how durable the Director/Actor relationships are by continent, represented by Netflix releases. We'd like to measure this by average number of movies done together, average length of time between their first and last movie together, and average number of movies done together per year of director's longevity. We are looking for nothing more than for you to generate the numbers below, as tempting as it may be to be fancy!

https://drive.google.com/file/d/1mX-VaIiRFvnQBWmyLHLPkWS3zxr3LdxT/view?usp=sharing