Hi alxmarie,
I'd recommend you stop using Kaplan entirely. Magoosh, however, does have some quality material, but I think they work best as a supplement. If you're looking to break 700+, you need to heavily emphasize official material (glad you've got the OG13 --- are you using this Error Log with it?) and what are widely recognized as the best GMAT books on the market: Manhattan GMAT. If I were you, I'd buy the complete set:
https://amzn.to/1LIwnvr. You'll find them MUCH more advanced than Kaplan.
However, if you feel you have a solid foundation in the basics, then only get these two:
"¢ Manhattan GMAT Number Properties:
https://amzn.to/1KBA1Xd
"¢ Manhattan GMAT Sentence Correction Guide:
https://amzn.to/1KBA6KD
Read the reviews on Amazon and you'll see why. I'd also suggest their Word Problems book. For CR, this is widely-agreed upon as the best book on the market:
"¢ PowerScore Critical Reasoning Bible:
https://amzn.to/1HCJe2p
To really move yourself 200+ points, read this blog from MGMAT:
https://www.beatthegmat.com/mba/2009/10/ ... ce-problem. Review is tough and tedious, and it's harder than just answering 1,000 questions. A student who does 5 questions with this level of review is getting WAY more out of their GMAT prep than the student who blindly answering hundreds of questions.
To improve quickly you need to review DEEPLY.
Fill in the attached Error Log after you complete each of your practice tests going forward, using the attached list of GMAT Concepts as a reference, then select 3-4 topics from the GMAT Concepts list to tackle in SERIOUS depth during the next week. Don't do everything all the time. A short list of topics will allow you greater depth of knowledge. Start with the concepts you're missing the most often. I suggest you only do MGMAT CATs (there are 6 and they are free with any book order), and the 4 GMATPreps from mba.com. If you want to supplement with Magoosh, go for it!
You may also want to consider working with a tutor to make sure your Quant and Verbal strategies and your usage of your scratch pad is in tip-top shape.
Feel free to email me if you have additional questions, but hopefully this gives you some solid ideas! I think the biggest mistake you've been making is using lightweight material and an unfocused study plan. Change those things and your score will improve significantly!
Best,
Vivian