Jeff, I have a new-found respect for you ...

"As an acid test, I feel I have mastered a language when I become bored with it - this happens when there is nothing more I can learn about it which can be quickly applied to real-world solutions."

This is a good statement.

Depending on the complexity of your framework, nine months is a good amount of time ... If you don't finish soon, it may become obsolete ... Good Luck!