I realize this card it is truly my favourite Court Card. The King of Cups is full of compassion and counseling for others, with the sensitive, wise and caring heart of an artist who was both poet and musician, represented by the Mythic figure Orpheus.
These qualities are so admirable and highly regarded and can be seen as being very positive. The negative aspect is that the King is unable to help himself and is known as the wounded healer. Many in the helping professions tend to crash and burn, because they extend themselves beyond their limits, in order to help others without addressing their own personal issues. I had once experienced this myself years ago as a counselor.
I heard it said that the best way to get your focus off of your own problems is to help someone else. This is often true especially if you are feeling sorry for yourself our full of worry and anxiety about your life. However if your motivation is to do this in order to avoid your own problems, this is not going to work for long and isn't healthy.
Certainly, those who are helpers do have insight into other peoples problems and are initially very good at assisting them in many compassionate ways. However this cannot happen consistently over a long period of time, because the individual will eventually come up against their own struggles and eventually will be unable to ignore them.
The message found within the King of Cups is that taking care of ourselves is an absolute must. If we can't take care of ourselves first, we can't really be there to effectively help others.