I am a giver by nature and while most times it brings me joy, sometimes it's to my detriment. You have to be careful and mindful about who and what you are giving your energy to. There are some people that can never and will never be pleased. If you are anything like me... that is a difficult conclusion to come to, especially when it is someone you care about.
When you find yourself in these situations I challenge you to take the time to discern if it's because you care OR if you are you fixated on finding a "solution".
Others happiness, at what cost to you? If consistently trying to please people/someone is causing you harm, you may want to rethink the friendship/relationship.
Let's be clear, I am not saying stop being be kind. Again, in uplifting others, you uplift yourself. We just have to be mindful and risk our mental health.