I go through my notes, if I didn't get to type up all the notes completely then I look up the "unfinished" part of my notes and get full answers. In that process I get easily distracted and side-tracked; therefore I spend 4 hours when I was only supposed to spend 1 hr or 1 1/2 hr at max to "complete" my notes . Study sessions are frustrating to say the least and at times impossible for me especially since I'm easily distracted (checking FB and other stuff). I've considered keeping my phone and laptop away, but listening to music helps get in the "zone" to study and my notes are on my laptop...
Thank god for my concerta, it lessens the non-sense and frustration