Are you aware that the test is changing on 5 June? There will be an entirely new section called Integrated Reasoning - so you'll need to study for that new section as well.
Given that you're struggling with your study for the Q and V sections, plus you'll now have to study for the new section, I'm guessing 6 weeks probably will not be enough time. I know that's not what you want to hear, but I want to make sure that you're setting a realistic plan for yourself - I don't want you to rush and cram, only to fall short because you didn't really give yourself adequate time.
Do you not have any vacation time for work? Can't you take off one day sometime in July, for example? (Or call in sick? :)
Next, in terms of studying, we'd be happy to advise you, but we need information from you on your strengths and weaknesses. Use the below article to analyze your most recent MGMAT CAT(s):
http://www.manhattangmat.com/blog/index ... ice-tests/Then come back here and share your analysis with us. (Note: do not just post the raw data; share your actual analysis - what you think the data means. That's an important skill to develop.) Also tell us how (if at all) you deviated from official testing conditions on the practice tests (skipping the essays, taking more time than allowed, taking longer breaks than allowed, using the pause button, etc.).