Starting to feel Im not capable of learning some of these question types.

I am stuck at a Pt level around 148. My worst subjects are Phenomenon-hypothesis (LR) Which am the absolute worst on & Casual Reasoning. I have watched the videos and drilled and It is still a foreign language after 2 months. I don't understand Why I cant just grasp the concept and its starting to feel like Im never going to understand it. The breakdown for the videos don't help me either because some of them just assume I know what's going on.