Hi!
If you have the time the extra time, I would say don’t rush and cram over the next few weeks and take it in September. You already got such an amazing score on the practice test, just think how well you would do if you had about 5 weeks or 6 weeks to prepare. You’ll see more improvement if you spread out your studies instead of compressing them into a couple weeks. In addition, peoples scores tend to range +/- 30 points from their practice tests. So while you most likely would do great just by the looks of your first practice test, it would be best for you to take a couple to get an overall average (these tests can range up and down in score as well).
In reference to the verbal,I would prepare for it. Yet again if you did this well the first time, why not do even better next? It would be ashamed to not study the verbal and then have a few high point valued verbal questions have a significant impact on your score. Sometimes 1 question can hold the same weight as a couple, so its best to just keep yourself prepared overall.
Good luck, by the looks of it, you are on the path to an exceptional score!
-Evan