sorry... but God isn't likely to help you here
you have to figure this out pretty much on your own...
what is the reason for getting ?s wrong?
is it timing?
is it that you don't remember the rules for SC?
is it the fact that you get stuck on a ? and refuse to move on?
is it CR logic?
how much time you spend on average per ?
are you uncomfortable reading from computer screen?
...
the list goes on...
practice here IMO is the only way to go, of course, considering that you studied (and remembered

) the basics... forum is also very helpful for CRs and SCs... it forces you to go back to your notes again and again (it helps only when you explain your answers

) it might take you a while to get used to it, but if you explicitly say/think about the answer choice you're most likely to remember it and get it right when you see it again.
another thing that has been helpful, is when you practice, read the explanations and make sure you understand them (OG explanations)... you can learn a lot from those.
again, forcing yourself to deal with verbal on a daily basis and reading from the screen are likely to help... but beware... it isn't an easy effort... it took me about 2 months to see any increase in verbal part.