Several things you need to do:

1. Find out where your weaknesses lie. Make an error log. Diagnose the gaps in your content knowledge.

2. Gather materials to conquer those weaknesses. Diversify. Use books, but also online sources like Grockit, BTG, GMATClub, etc.

3. Make sure you are SOLID on every GMATPrep and OG question.

4. Re-evaluate strategy. What is working for you? What isn't? Do you *really* have a solid strategy for each Q-type? Be honest with yourself. You may want to contact a private tutor to help out here.

5. Schedule out your GMAT prep-time from now until Test Date. *How*,*when*, and *what* will you study?

Going from 460 to 660 in 1 month is ambitious, and will require a lot of hard work, but you can absolutely do it! Good luck!