Hang in there
Don't give up
By the skin of your teeth
Just barely
Spill the beans
Give away a secret
A dime a dozen
Something very common
call it a day
stop working on something
Put something on ice
Put a project on hold
Take a rain check
Postpone a plan
Pull yourself together
Calm down
Get your act together
Starting doing better or leave
Let someone off the hook
To not hold someone responsible for something
Give someone the cold shoulder
Ignore someone
Hit the sack
Go to sleep
Let the cat out of the bag
Give away a secret
Make a long story short
Tell something briefly
Miss the boat
It's too late
cost an arm and a leg
very expensive
Throw caution to the wind
Take a risk
Give someone the benefit of the doubt
Trust what someone says even though you are not 100% sure they're telling the truth.
break a leg
good luck
hold your horses
wait a moment
It's not rocket science
It's not complicated
The ball is in your court
It's your decision
Actions speak louder than words
Believe what people do and not always what they say
Take it with a grain of salt
Don’t take it too seriously
Once in a blue moon
Rarely
Cut somebody some slack
Don't be so hard on someone
Rain on someone's parade
To spoil something
A picture is worth 1000 words
Better to show than tell
We'll cross that bridge when we come to it
Let's wait to talk about that problem until we get closer to the time
On thin ice
If you make another mistake, there will be trouble.
On the ball
Doing a good job
Wrap your head around something
Understand something complicated
Under the weather
Sick
Better late than never
Better to do something late than not to do something at all
Go back to the drawing board
Start over
A penny for your thoughts
Tell me what you're thinking
Pull someone's leg
To joke with someone