There is a possibility to do the tests again after two years were maturity and life experience might have improved the logical thinking.
Now this is going to sound like a really strange thing to advise, but if you think you need to improve on your general reasoning and adopt a more logical approach to problem solving then read philosophy (if you don't already). I personally recommend "Plato's Dialogues" as an hors e'durve. If the subject grows on you, you will decide what to pick up next.