is it still effective to print out and practice lsat questions?

Hello I am taking the January LSAT next week and I have two questions. I am struggling with flaw questions when its not one of the common flaws listed. I have tried using the piecewise analysis when looking at answer choices, or trying to see if its descriptively accurate and weakens but I am still struggling to get them right. I think I also have issues because I am trying to not negate the premises and conclusions, but some of the correct answer choices does negate them? I think its hard for me to recognize a flaw because I get overwhelmed that there is so many ways to destroy an argument.

I feel like i am missing easy points if anyone has any tips