to think, talk or write about a happy time in your past
reminisce (about something/somebody)
a mistake in something that means that it is not correct or does not work correctly
a flaw
to read something quickly and not thoroughly
to glance at/down/over/through something
sad and without hope
gloomy
to crush something into folds
to crumple (sth) up (into sth)
unhappy or extremely sad
wretched
to type without having to look at the keys of a typewriter or keyboard
to touch-type
to cause someone to feel sudden strong emotion
to overwhelm
to do more than you are capable of; to make somebody/something do more than they are capable of
to overstretch sb/ sth/ yourself
to experience serious emotional problems that make you unable to think or act in the usual way (collapse mentally)
to fall apart