pour your heart out

US /pɔr yʊər hɑrt aʊt/
UK /pɔr yʊər hɑrt aʊt/
"pour your heart out" picture
1.

to tell someone all your feelings and problems

:
She decided to pour her heart out to her best friend about her recent breakup.
It felt good to finally pour my heart out and share my worries.