Let's see... so the big question is whether you can go from 530 to 600 in a month, right? That's possible, but not everyone would succeed. You'll have to work hard and there are no guarantees, of course. :)
So you'll have to decide whether you want to go for it. If you fall short, at least you'll know you tried!
In terms of coming up with a plan, you're on the right track as far as analyzing your results, but there's a lot more analysis to do. Percentage correct is only one part of the picture. Do the analysis described in this article:http://www.manhattangmat.com/blog/index ... ice-tests/
Then come back here and share your full analysis (not just the raw data - tell us what you think it means).
If you have ANY timing problems (and 98% of people do), read this and start doing what it says immediately:http://www.manhattangmat.com/blog/index ... anagement/
It takes a good 4-6 weeks to fix timing problems, so you have to start right away. Also read this:http://www.manhattangmat.com/blog/index ... -the-gmat/
That article has links to a bunch of other articles - follow the links and read the articles.
It is true for a lot of people that SC is the easiest to improve, but not for everyone. Which do you like the best? Which seems easiest or most intuitive to you?
Also, here are some resources on various things you mentioned:
Number properties:http://www.manhattangmat.com/blog/index ... -gmatprep/
Within that article, there's a link to an article on word translations - so read that too.
RC:http://www.manhattangmat.com/blog/index ... p-passage/http://www.manhattangmat.com/blog/index ... c-passage/http://www.manhattangmat.com/blog/index ... rehension/http://www.manhattangmat.com/blog/index ... -passages/
RC questions:http://www.beatthegmat.com/mba/2010/09/ ... prehensionhttp://www.beatthegmat.com/mba/2010/11/ ... il-problemhttp://www.manhattangmat.com/articles/a ... estion.cfm