Make Ends Meet
Meaning:
Have or earn enough (often only enough) money to live.
If you make ends meet, you get enough money to pay for something you need, especially in order to live
Example:
With five children at home and 2 living away to attend college, the parents struggled to make ends meet, but somehow they managed.
When she was a poor student, she had to work 5 hours a day late at night to make ends meet.