unburden
To free someone from a heavy load, worry, or duty.
To unburden means to free yourself or someone else from a heavy load, whether physical or emotional. When you unburden a pack mule, you remove the heavy cargo it's been carrying. When you unburden your mind, you release worries or secrets you've been holding inside.
The word often describes the relief of sharing something difficult. A student might unburden herself by finally telling a teacher about a problem at home. A friend might unburden himself by confessing a mistake he's been feeling guilty about. There's a sense of weight lifting, like setting down a backpack you've carried too long.
You can also unburden someone else by taking away their responsibilities or concerns. Parents might unburden their teenager by handling a complicated situation, or teammates might unburden their captain by volunteering for extra work.
Notice how the word captures both the weight we carry and the freedom of release. When you finally unburden yourself of something you've been carrying alone, the relief can feel almost physical, like you can breathe more deeply or stand up straighter.