Before I post my question, I would like to share some information about me.
I'm not a native English speaker, so Verbal-SC is the toughest part for me.
Previously back in 2010 I had taken online course and on completion of course I was lagging way behind in SC, so left it that way. My Quanta concepts were good and I was comfortable with OG questions as well.
Recently in Sep-2012 I started back with GMAT prep, beginning with SC. I went through a basic Grammar Book to understand basic Parts of Speech. Thereafter, I was stuck where to start next. Anyhow I started with Ultimate GMAT Grammar
Book, but have been again stuck at Basic section-1 - as I find it too exhaustive. It doesn't seems feasible to absorb all the concepts listed.
Right now I'm feeling too depressed as to why I can't progress further. For over a month of study so far, I'm still neither able to gather pace nor confidence.
I would greatly appreciate if someone could advise me where should I begin my prep for SC. I have the following materials:Ultimate GMAT Grammar
MGMAT Verbal Foundation
Aristotle SC GrailKaplan
GMAT Verbal foundationsPowerscore SC