Having compassion for oneself is really no different than having compassion for others. Think about what the experience of compassion feels like.
First, to have compassion for others you must notice that they are suffering. If you ignore that homeless person on the street, you can’t feel compassion for how difficult his or her experience is. Second, compassion involves feeling moved by others’ suffering so that your heart responds to their pain (the word compassion literally means to “suffer with”). When this occurs, you feel warmth, caring, and the desire to help the suffering person in some way.
Having compassion also means that you offer understanding and kindness to others when they fail or make mistakes, rather than judging them harshly.
Finally, when you feel compassion for another (rather than mere pity), it means that you realize that suffering, failure, and imperfection is part of the shared human experience. “There but for fortune go I.”