I'm sorry for that for you. I'm not sure what to suggest, maybe DBT.

I was diagnosed with Borderline traits, but I have always liked myself. I entertain myself. I have a big imagination, see beauty and humor in things.

I'm not sure if not liking yourself is a symptom of Borderline.

Sure, there are things about myself I don't accept or forgive, but I have a general like.

Maybe you could make a list of the things you do like about yourself. What are you good at? Who do you help? Even gives yourself points for caring for a plant.