Any tips on Basic Translation Drill?

MISC_K79

While I was struggling with LR, I encountered and read Loophole by Ellen Cassidy. I am currently working on basic translation drill a training method introduced in the book; I read the LR passages and cover it up and write down or elaborate in my own words within 20 minutes for all stimuli in the section.
This, I find it very difficult since my English is secondary language, and it takes 1 hour to complete a section.

This method of training seems reasonable approach to conquer the LR in time but I wonder if this is something that can be improved.

Any advice or thoughts will be very appreciated.