Welcome LifeInShadow: I'm sorry about what's going on with you sister. Did your parents know your sister was trying to get pregnant? Having babies can't fix her, it only causes more problems. Has your sister been getting treatment for her BPD?
it is difficult for me to forgive her for all the pain and exhaustion.
These thoughts make me feel judgmental and unkind. I wish I could be more forgiving.
How can I improve my thoughts so that they're not so mean towards her? How can I bring myself to love her?
It has to be tough for you. I know I'd have a hard time dealing with a sister who went through extraordinary measures to get pregnant, when she can't take care of herself financially or otherwise. Are your parents helping her deal with her BPD responsible or do you think they are enabling her?
VALIDATION is one skill you can try with her. Validation isn't about agreeing with someone's opinion or position on something. It is about acknowledging their feelings. What can be more important than Validating is to NOT invalidate.
SET (Support, Empathy and Truth) is a communication skill you might want to try. You let her know that you want to
support her in some way that you feel comfortable with.
Empathy is basically the same as Validation and
Truth is just what it says.
i.e. I'm here to help you get through this, with a listening ear. You must feel a great deal of loss. Your health and well being is the most important thing to focus on right now.