You've come to the right place.
First, let's try to figure out why your score dropped so much from one test to another. You mention not finishing the verbal section. Can you give us more details? Did you leave questions blank? How many? Did you have to rush on a bunch of questions towards the end (answering blindly without real time to do them properly)? If so, how many?
Did anything similar happen in quant? Were you rushing at times because you were spending too much time on other Qs at other times?
You can read this article to get more ideas about why your score dropped so much:
http://www.manhattangmat.com/blog/index ... ent-wrong/Then come back here and tell us what you found out.
Also, were both tests practice tests? Or real?
If you have taken an MGMAT practice test, please use the below article to analyze your results, then come back here and tell us the results of your analysis (note: don't just give us the raw data; tell us what you think the data means - that's an important skill to develop for yourself).
http://www.manhattangmat.com/blog/index ... ice-tests/If you haven't taken an MGMAT test, I would recommend that you do so; we need the data on your strengths and weaknesses in order to advise you. Make sure to take the test under 100% official conditions, including essays and length of breaks (8 min each).
Finally, have you thought in general about how you want to study? On your own? With a friend? With a class or tutor?