A shot/stab in the dark proverb phrase informal
A guess or an estimate with little or no guarantee of accuracy.
That is an important event, so you shouldn't take a shot in the dark.
Rather than take a stab in the dark, ask her why she's so upset.
Used to indicate an attempt that is not expected to succeed or has very little chance of working.
It was a bit of a stab in the dark to invest all of my money in the plan. I considered it as my lesson.
He admitted that it was really just a shot in the dark when he tried to install a LAN. However, he eventually made it work.
Relying on guessing and luck
If you put your heart in, you put all of your efforts and passion into it.
To make great efforts to do something or give one's full attention to something
To face failure or defeat but then quickly make another attempt.
To try to do something new