No pain, no gain
You have to work for what you want
Miss the boat
It's too late
A picture is worth 1000 words
Better to show than tell
The ball is in your court
It's your decision
Take a rain check
Postpone a plan
Take it with a grain of salt
Don’t take it too seriously
Spill the beans
Give away a secret
Look before you leap
Take only calculated risks
A blessing in disguise
a good thing that seemed bad at first
Saving for a rainy day
Saving money for later
Give someone the cold shoulder
Ignore someone
Once in a blue moon
Rarely
Get your act together
Work better or leave
break a leg
good luck
Hit the sack
Go to sleep
On the ball
Doing a good job
Make a long story short
Tell something briefly
On thin ice
On probation. If you make another mistake, there will be trouble.
It's not rocket science
It's not complicated
A dime a dozen
Something very common
Let someone off the hook
To not hold someone responsible for something
The best thing since sliced bread
A really good invention
Add insult to injury
To make a bad situation worse
Wrap your head around something
Understand something complicated
Under the weather
Sick
Actions speak louder than words
Believe what people do and not what they say
Let the cat out of the bag
Give away a secret
Hang in there
Don't give up
Better late than never
Better to arrive late than not to come at all
Give someone the benefit of the doubt
Trust what someone says
You can't judge a book by its cover
This person or thing may look bad, but it's good inside
Pull yourself together
Calm down
By the skin of your teeth
Just barely
Cut somebody some slack
Don't be so critical
There's a method to his madness
He seems crazy but actually he's clever
It's raining cats and dogs
It's raining hard
Go back to the drawing board
Start over
We'll cross that bridge when we come to it
Let's not talk about that problem right now
It's a piece of cake
It's easy
A perfect storm
the worst possible situation
Pull someone's leg
To joke with someone
Rain on someone's parade
To spoil something