GMAT Verbal & Essays

Hello ,

I am non native English speaker , and found RC and CR sections hardest for me.

I have already purchased MGMAT SC guide . But can not decide about SC and RC...

I've also heard that LSAT tests are great for practicing , where can i get them?

I have Kaplan premier program, Princeton revew and OG 12.... but they do not cover any good strategies for these sections...