Self Compassion is much like medication. You can know Tylenol will help with the headache, you can even have it on hand....BUT IT ONLY WORKS IF YOU TAKE THE MEDICINE.
Being a human is really friggin hard. Don't just tell others that you know you need to be kinder to yourself...actually, intentionally behave that way.
There is a significant difference between knowing something is helpful and actually experiencing it being so.