a fundamental concept i learned in both psychology and neurobiology that may help you is the idea of active learning. people only retain a certain amount of what they take in with their senses and the more senses they use to process it the longer (and more thoroughly) they will retain it. if you take a more active approach your brain will compensate by allocating more priority to it. think of it this way, your brain constantly takes in sensory info and as a survival mechanism it has to chuck out the majority of it (you couldnt possibly remember every road sign or smell the cologne you wear the entire day, your brain blocks it out because its fixed or because the duration of exposure was too short) so if you only visually interact with it and its only in one manner, youre not likely to adapt as well.
instead of trying to look at the image sides they show you and visualize the 3d object. get a program like crack dat pat (its worth every penny) and look at their 3d representations. look at one for a minute or 2 from all angles (you can rotate them) to get a solid 3d image in your head of what it looks like. then try to draw it the way it should look in the Tfe section. Spend 15 minutes doing this every night for one week. the short duration of the sessions and time between sessions should be pretty well suited to this kind of thing.
at the end of the week you should be solid and wont have problems with it anymore.
ps - just so you know, the only part of the pat i have trouble with is the block counting (cuz im impatient and careless and always miss a block cuz i rush) and its because of this technique. ive got crack dat pat and all the other diagnostics and my pat scores are up to the 27-28s now because of this strategy and would be at a continual 29-30 if it wasnt for the damn blocks (argh)