If you live on an amount of money, that is the money that you use to buy the things that you need
live on sth
mostly, in general
in the main
to become familiar with and confident in a new situation
find your feet
This means that when people we love are not with us, we love them even more
absence makes the heart grow fonder
something unpleasant that cannot be avoided
a fact of life
to be unkind to someone and laugh at or cause others to laugh at the person
make fun of someone
to annoy someone a lot
get on someone`s nerves
someone or something that is very annoying
pain in the neck