ACT Math and Reading HELP?!

Ok, so I have been prepping for Math and always seem to do terrible on some of the logic problems. I can study the equations all day but somehow I can never get the logic problems that tend to come after #50. Is there any way to adequately prepare for these?

So regarding reading, I always seem to miss the little details when I finish on time. When I finish a little later, I get them but have been having trouble doing it on time. How do I really master the reading section cause it fucking screws me each time?