Mami
This is Kawaguchi Hidetoshi. This is my humble answer to the question.
Caring for others... it's really difficult...
Also, even if you do something that you think would be good for you, there are times when it is superfluous and counterproductive.
In my humble opinion, to be honest, I don't think it's possible to truly understand the other person. After all, I am myself, others are others, and there is no way that I can become someone else.
So, basically, everyone is selfish, self-centered, thinking only about themselves, and after all, they can only look at other things using their own yardstick.
However, if you are selfish and free to do everything, you will not be able to spend time in this human society.
Therefore, ethics, morals, rules, laws, etc. for living in human society have been established.
Therefore, when it comes to being careful, one thing is to abide by ethics, morality, rules, and laws, which are the precepts (Five Commandments, Ten Good Commandments, etc.) in Buddhist terms, but at the same time, it is important to understand that our world is made up of supporting, helping, sharing, and supplementing each other, and if something is in trouble or suffering, it is important to support and help each other with what we can do.
Also, if you want to cultivate a more specific sense of compassion, I think it would be good to practice “mercy” in Buddhism.
There is a method of practicing “mercy meditation” little by little every day, and one of them is to make everyone think they are babies in order to be considerate of Mr. Tange's partner, and similarly, there is also a way to make everyone think they were mothers in past lives.
By thinking that all things (all sentient beings) are their former mothers, it means making arrangements so that they can treat everyone with a feeling of gratitude and reward. Of course, it doesn't matter if it's not just a mother, but also a father, grandparent, or teacher, but I think it's okay to think that they are people who have been indebted in past lives.
Kawaguchi Hidetoshi Gassho