The good news about logic games is that it is the most learnable section of the test. Anyone, with enough hard work, persistence, effort, and the right approach can crush the section and get only 0-2 wrong.
The bad news is that logic games are unfortunately not easy. It takes alot of work and effort and it can definitely get frustrating along the way.
The first element needed to succeed on logic games is to develop a good diagraming strategy. Every logic games presents a convoluted set of rules and the test taker needs to learn how to digest the complicated rules and represent them simply on a clear and concise "game board". For a student who is self studying I personally recommend the Powerscore logic games bible. It's approach to logic games diagraming is simple and efficient and can help a student become a 160/170's scorer. Of course if a student wants to work with a tutor I am always available to chat on the phone and to set up sessions!
Once a student has learned how to diagram and has learned about the different types of games they then are in the practice stage. The need to start doing old logic games and then need to review them. At first a student will not be able to worry about time. They will be going way slower then the official time allotted. That's ok! The key at this point is to just get better at setting up the game, making key inferences, and learning how to answer the questions correctly. I will emphasize the importance of review. In my opinion review is not only something you do after you look at the correct answers. After you do a game or a section before you look at the answers you should review all the questions (and particularly the ones you were unsure about!) In order to see if you can make more headway the second time around.
After you have developed your accuracy and have become better at answering logic game questions now it is time to also focus on time. At this point I would be trying to do a logic game section per day (or at least a few sections a week) with review. The goal at this point is to continue honing accuracy while also trying to finish them in the proper amount of time. By doing many games hopefully a student will mechanically, intuitively, and efficiently succeed at logic games and will be way on their way to a great score! Hope this helps and let me know if you have any questions. Happy to chat anytime!
Brian