The thing(s) that helped me the most for logic games was: 1.) The book "The LSAT Trainer" by Mike Kim, and 2.) getting a tutor/watching someone do things live. The book really helps break down the different types of logic games, how to diagram them, how to answer certain questions, and is just all around a fantastic study guide for all things LSAT related. I also needed to have someone I could run my wrong answers past, and understand how it was done.

Hope this helps!