Struggling with the math and support/contrast strategy for Verbal (Week 1 - 1 month plan)

Hello,

I have made an effort to memorize the support/contrast logic list and went through all the lessons on week one, plus did all the homework. But I am still struggling a lot to know if a blank is supported or contrasted following the math strategy taught.

My main struggle is that I often choose the wrong support or contrast word or the wrong idea 1 or idea 2 that this word is meant to relate with each other.

What do you recommend in order to get better at this? Shoud I go through the “Dedicated Grammar for the GRE Classes”? Or would my time be better spent if I go through week 1 of a different series all over again and do the exercises again? What would be a better use of my time if my only goal is to improve my verbal score to a 155+?

Regards,

Bushido.