Study Plan Question - is 700 realistic?

hi all,

Guttered, defeated and was really down and under, and feelin maybe gmat is just not my game .

I'm a totally new (< 1day old) on gmat club; i stumbled across this website yesterday, read several treads for a couple hours and it made me feel a little better (and learnt a lot of useful tips like error log, gmat timer, etc)....

Cut the long story short, i felt seriously troubled having attempted my first cat test (Gmat prep 1) yesterday, and only got 500 (Quans 34; Verbal 25), i am embarassed to say, even though i had revised for 3.5 months and been to a prep course with veritas prep which i paid (in the UK) nearly double the price of what was suggested on this website. I did have to pick up (not recap) a lot of basic math on my own during that period though bcos i didn't do high school maths. Unfortunately I also skipped the first year of my undergrad (where maths was covered) to complete a 3 years degree in 2, since I haven’t had enough money then to pay for the extra year.

My problem now is, is it realistic for me to obtain the 700 region on gmat.

I have laboriously gone through all the questions on the prep course material (except the last book which is a review of quants lessons) ensuring tat i know how to do nearly every single one of them (i say about 97%) during my revision - but i can't remember everything nor am i fast enough to solve them under timed condition. I was a little angry because i was given the impression that if i went through all the prep course material and can do all the questions, i would be capable of managing at least 600+.

I only have 2mths left on the online resouce (mainly the CAT tests) before it expires, and I think Veritas is going to ask for more money if I need to extend it. My initial plan, assuming I would have been at 600 level by now, was to use the next 1 month to practice on CATs to get me up to 700. Now I am at a loss with what is the best thing to do. You said it isn’t advisable to spend more than 6 mths, is my time up, is gmat not my game after all?
Would it be a realistic or sensible way forward if I went through my prep course material again (hopefully 2nd time round sticks in my memory better) - 2 weeks on Quans and 2 weeks on verbal, and use the last remaining month to do practice CAT. Or should I restart using BB's GMAT Study Plan for GMAT Novices?

In terms of where is stand on my quans and verbal skill level, may be best describe by the following illustration:

I can’t solve and not sure where to start with this question:
If a > b > 0, then SqRoot[a^2 - b^2] = ?

I know the principle I should use (Iso. triangle sides = x : x : SqRoot2)to solve this question but I can’t figured out how to solve:
The perimeter of a isosceles triangle is 16 + 16 * SqRoot2. What is the length of its hypotenuse.

I can figured out how to solve this but it took me 7 mins!!:
If 5^21 * 4^11 = 2 * 10^n. What is n?

As for my verbal skills I got 12 out of the first 15 questions correct on the Gmat Prep 1 test but it took me over half an hour to finish just 15 questions!! The remaining questions I was not unable to carry out proper analysis for SC and CR nor did I have time to read RC questions properly, and got most questions wrong, wrong wrong, wrong…..
I am not a native English speaker and is a slow reader averaging 150words per min to read and understand a passage that is not too convoluted or filled with technical terms

Anyone with rescue tips or advise for me (BB would you be able to advise?