I often have clients tell me that crying doesn't make them feel better, it makes them feel worse.
And they aren't wrong. When we are stuck in a despair mindset, it often brings us to tears, but they aren't relieving or releasing...they are hopeless and depressing.
But don't let despair tears stereotype all crying for you. Because a release of grief can be incredibly healing. When we grieve (esp with caring others), it allows our body to release some of the emotional pain from our traumas and losses so we can move forward.