Can I help my friend or is she broken?

It's about a good friend of mine. She's diagnosed with borderline personality disorder and also has anxiety and stress disorders.

About her history:

From an early age, she had to learn to become independent and mature. Her sister, two years older, had to be hospitalized frequently and undergo several surgeries. This whole process spanned several months or even years.

The mother was with her sick daughter almost 24/7 and also spent the night there, while the father was almost never at home due to work reasons.

Often, her grandmother, neighbors, or sometimes a daycare provider came to look after her. She was never able to develop a proper bond with her parents.

During her school years, she was said to have been a very shy girl with little self-confidence and identity issues. She was bullied for years, which further exacerbated her self-doubt. To this day, she can't truly love herself and doesn't really know who she is or what makes her tick.

Over the years, her parents became physically abusive toward her and threatened to send her to boarding school when the pressure of dealing with their sick daughter became too much for them. They took out all their negative energy on her. She was, so to speak, the black sheep of the family. From scratching until she bled to violently pulling her hair, pushing, and slapping, she was treated with everything.

During her adolescence, she began to look for love outside. She quickly became obsessed with people who were friendly to her and fell in love very quickly. But even there, she fell under the wrong influence and was sometimes sexually abused and coerced.

Today she is very unstable, characterized by strong fears of loss, sometimes very toxic, shows self-harming behavior, has an extremely disturbed perception and is characterized by self-doubt

Can she still be helped or is she too broken?