This looks like a good plan.
I'll also add that, to improve your GMAT skills, be sure to study in a topical way. In other words, be sure you're focusing on just ONE topic at a time and practicing just that topic until you achieve
mastery. If you can study that way, I’m sure you'll see improvement.
For example, let's say you're studying Number Properties. First, learn all you can about that topic, and then practice only Number Property questions. After each problem set, thoroughly analyze your incorrect questions. For example, if you got a remainder question wrong, ask yourself why. Did you make a careless mistake? Did you not properly apply the remainder formula? Was there a concept you did not understand in the question? Did you fall for a trap answer? If so, what was the nature of the trap, and how can you avoid similar traps in the future?
By meticulously analyzing your mistakes, you will efficiently address your weaknesses and, consequently, enhance your GMAT skills. This process has been unequivocally proven to be effective. Number Properties is just one example; follow this process for all topics.
For some more tips on the best way to structure your studying, check out these articles:
-
How to Increase Your GMAT Quant Score: Top 20 Tips -
GMAT Verbal Tips and Tricks for the Focus Edition: Top 10-
How to Prepare for GMAT Data Insights-
How GMAT Students With a Growth Mindset See Their Mistakes