She's always complaining that she doesn't have enough money, but WE'RE ALL IN THE SAME BOAT.
BE IN THE SAME BOAT: To be in the same unpleasant situation as other people.
A good walk might CLEAR MY HEAD.
CLEAR YOUR MIND: To stop worrying or thinking about something, or get rid of the effects of drinking too much alcohol.
The company is still doing business, but ever since the recession hit, they've been TEETERING ON THE EDGE of closing down.
TEETER ON THE EDGE (OF SOMETHING): To be very close to doing something or of having some imminent event happen, especially that which is bad or disastrous.