“A shot in the dark”

“In hot water”

In trouble.

“Flash in the pan”

A short-lived success that does not last.

“Get a foot in the door”

To get a small opportunity that may lead to bigger opportunities.

“In a nutshell”

In a very brief and clear way.

“Dead in the water”

Unable to continue or succeed.

“Hang in there”

To keep trying and not give up.

“Rome wasn’t built in a day”

Important things take time.

“Diamond in the rough”

A person or thing with great potential but not yet fully developed.