Ok so sounds like a dilemma I faced couple of hours ago. My first mock scored 560 , my second mock scored 720 and third mock which I attempted today ,I scored 590 ! Just like your score, an awful score in verbal 26!
With this unsettling anxiety I thought if I should rethink of going for GMAT and try Gre instead.
So then I decided to analyse it again , 1. Why is that I am a terrible performer at RC ? Why is my SC percentile above 90 always in every mock ! What makes my verbal so weak ?
And the answers I found were
1. For SC I have a note book with proper notes , I always maximised my accuracy and potential in SC . I gave SC a month's time for learning logics , strategies to solve the questions and I still don't fail to attempt SC questions every single day before going to bed . Result? SC pampers me back.
2. But RC , always taken up as a mundane task.Read but never comprehend . Read lot of stuff , but never comprehend again . So RC screws me and my scores everytime.
After those tears that rolled down third time from my eyes , today ,I decided no second thought about GRE or CAT . I will make sure I screw RC with right answers and make it afraid of me ! So I will give it a month's time. Yes may be I will miss my deadlines for applying to b schools but I'm not missing my life ! Because my dream is not only to do an MBA but do it from one of the top b schools.
I know you have already spent enough of your money ,but at the same time you have spent enough of your effort. If you ditch GMAT and go to a new examination altogether probably you will waste your time and effort both on something you need to start again. Rather why don't you chose fighting back ? Paying some extra money and pruning your weaknesses. Take your time. Work on it. Start living GMAT
I know you will get through. It's not easy but it isn't impossible.
Hope this helps .All the best!