How to improve from 710 to 750+?

I gave my GMAT exam 2 days ago, and I was pretty certain that I would get a 720+ score based on my GMAT Prep Test performance. I was really disappointed to see a score of 710 (Q49 V38) at the end of the test.

The material that I used for preparing for the test was:
1) Official Guide
2) MGMAT Guides for Quant
3) E-Gmat Modules for Verbal
4) Experts Global Mocks
5) Official Mocks (6)
6) GMATClub questions

I've studied for ~6 months now. However, I've had several breaks in these 6 months, periods ranging from a few days to a week because of my full-time job at times and lost one full month (in July) to illness. On other days, I've studied for 2-3 hours a day on weekdays and 6-7 hours on weekends over this period.
I scored the following for each official mock test. I gave these tests within 2 weeks (with a gap of 2/3 days between each test) right before my final exam.
Mock Test 1: 740 (Q49 V42)
Mock Test 2: 720 (Q50 V38)
Mock Test 3: 680 (Q48 V35)
Mock Test 4: 710 (Q50 V35)
Mock Test 5: 720 (Q50 V37)
Mock Test 6: 750 (Q50 V41)

I'm planning to apply to US B-schools in 2023 intake.

Could anyone please advice as to how I can improve my score to a 750 or above? Any advice would be of great help. I plan to retake my test in a month if possible.


Thanks in advance!