The Best method I find is
1. Turn off distractions of course
2. Get comfortable in bed, a nicely leved desk/table and chair, right temperature in room or go outside if it helps.
3. When memorizing vocab. use a method like: a. ab. abc. abcd. abcde
Basically, read A, then repeat A. Wheb you go to B, read B, repeat A, and repeat B. Read C, repeat A, repeat B, repeat C. Etc;, separate the items in 3s, 5s, 10s or whichever set you feel comfortable with. Of course, applying the items youre studying to thinga you do, find familiarization.