Highlight - Only for History and Social Studies.
The rest, read and write out the main points and leave a few lines
to write the details.
Study with or without music, depends on mood. If I want, will turn
on. If don't want, never... will be some classical music or some
old Chinese songs and set them to repeat.
Study best at night... quiet and nobody nagging.
Anywhere that is comfortable... not too cold, not too hot. Best is
a place that is empty, as long as I'm not facing four walls.