I love this.
I do practice it. It leads to peace of mind and healthy mental health.
It is true that self love also requires you to love and care for others even through that makes one more happier. But in a case where by you are uncomfortable with something, it is okay to say no.
People usually misuse opportunities given to them, if you are doing everything people want you to do and denying yourself too much, people will just keep using and using you.
Nice post. Kudos