Never resume

I am afraid you didn't resume to move forward in the development of the project after holding on it for a few months. Please suggest suitable a word instead of "resume"

I am afraid you never move forward in the development of the project after holding on it for a few months.

I am afraid you did not take to move forward in the development of the project after holding on it for a few months.

Please suggest any changes in these sentences to make these things better.