How to become structured and clear in communications

I recently got a feedback in my interview process that I should be more structured and clear in communications, particularly on the topics that are broad and complex like approaching monolith refactoring, pros and cons of some technologies. I tend to sometimes quickly over points or vice versa versa go unnecessary deep into details, or divert into connected topics.

Can you please give any advice, recommend a book or something else to improve my communication skills. Thank you!