hang on to
US /hæŋ ɑːn tə/
UK /hæŋ ɑːn tə/

1.
to keep something; to not let go of something
:
•
Please hang on to your ticket, you'll need it to exit.
•
She decided to hang on to her old car for a few more years.
2.
to continue to believe in or adhere to something, especially an idea or hope
:
•
Despite the setbacks, they continued to hang on to their dream.
•
You have to hang on to hope, even when things are tough.