Ruined my first attempt - just 440

Hi everyone, and Salam Aleikum Rahmatullah to muslims, my name is Ali and I am form Ukraine, the main reason why I am here - like all of the present forum members, need a help to improve my GMAT skills.

First of all, I would like to introduce myself - i am 28 and former bank worker of Corporate Banking and LC Dept., now trying to maintain my own business in Kiev. I with my wife have decided to try to obtain MBA in USA, i have already Master's dual degree in International Economic Relations and Interpreter of Spanish Language (Podemos hablar tambien en espanol, si lo deseen, pero he olvidado casi todo ))

My MBA jorney began 4 month ago, when I took TOEFL exam, I gor middle score of 77 (out of 120) with scores in sections - 22 reading, 20 speaking, 23 writing and.... 12 listening. As you have noticed, in general my english is not so great according score, but this is just lack of practice during recent years and weak listening section. Then I decided to join GMAT preparation course in Kiev, my pre-test result were awfull, all my home assignments took all my free time, this something new for me, SC, DS, CR questions, I have never meet them in any my university test and in real life)

When I finished courses (1,5 month), I made an appointment to real exam. And that was my first mistake, because I now understand how I overestimated myself and underestimated real exam. My first GMATprep test was just month ago, and I got 430... The second try was yesterday, one before my actual exam and I got 460...

My real exam result: 440 (Q50, V04).

My preparation consisted in Handbooks from my courses and OG 13. I solved everything in my Handbooks, and bigger part of OG. Quantative section - I solve 80-85% problems correct, Verbal - 50-65% of entire tasks. But at real exam I was surprised, Verbal section was created by somebody from the HELL. I was not nervious, I slept good, but after all, I have two ways to make conclusion : or I am not capable to take verbal section soon in my life due to the lack of my English, or I have look from another point my preparation...

In any case, I would be gratefull for your help, for your reply or for any of your thoughts, because I sold my business 3 month ago to have more time for my GMAT, and now have to decide - continiue my preparation being free, or to prolong my dream MBA and look for employment