Hi Dextar
1) Kaplan tests ARE demoralising... so dun worry.. 570 is a fine score if its Kaplan.
2) You probably know.. wen you dun finish a section, you get penalised even more severely. Thats why the first test was only 600 inspite of a good quant score. YOU HAVE TO COMPLETE EACH SECTION.
3) What is the time limit ur aiming at for RC?
4) OG questions are simpler than the actual GMAT. In OG11, the first diagnostic test (I felt) had tougher questions than the rest of the book.
5) One of the major probs with SC is that u cant identify the error in the question sentence.
In those cases, read the options. Identify errors in options. Strike out options that are not feasible.
6) Yes, u can forget the para in RCs. Especially if its Kaplan Verbal.. tough paras.
Before reading -
(a)count number of paras in the RC
(b)Glance thru first and last line of each para to identify whether the RC is Scientific, Geographic or Social or whatever.
(c)After reading each para, quickly ask urself if uv understood. If yes, then proceed. If no, glance thru it again.. trust me.. there is time...just dun get distracted by panicking.
If u still cant remember, then while reading, just remember in general what the para says. When u read a question, even if u cant answer the question directly, you shud know wer in the passage the answer is.
7) Reading speed. Hmm... what can i say? U have to make a conscious effort. Run ur finger quickly below the line ur reading. It might help.

Ur afraid of the VA. Dun be. Everytime u feel panicky just breathe. When u panic, ur breathing rate goes up.. control ur breathing rate and the anxiety reduces..its not magic.. its biology.
9) Id say u need to revise the VA. What are ur mistakes? Which ones are common? Is it the idioms u get wrong? Is it the punctuation? If u cunt identify the error, could you understand it in the answer explanation or couldn't you? Is your thinking wrong in CR? What is wrong? Can you understand the answer explanations?
RC needs practice nuthing else.
Take some time off ur regular study and just gather all ur mistakes. OG, Kaplan, the tests, wateva else uv solved. Make notes of ur mistakes. Clear the mistakes u understand. What u cant agree with, bring it here to the forum.. maybe we can all help u understand.. savvy?
Im sorry I dun know the beatthegmat format for SC.. if you can tell me what it is, i can help u.
When are you taking the GMAT?
Regards.