Hi starting2thrive and welcome to BPDFamily

Dealing with a disordered parent can be very challenging indeed. This is something you've unfortunately been experiencing for many years now already.
I don't want her to threaten suicide or go through with it. I'm tired of hearing "you have to solve things because she's family".
Is threatening suicide something she has done before in the past or are you talking about a general concern you have considering the types of behaviors she exhibits?
Who exactly tells you that you have to solve things because she's family?
The thing is, I'm only answering the phone or seeing her out of pure guilt. There is nothing positive about our interactions, and they leave me feeling drained and anxious.
….
Living with this guilt is preventing me from reaching so many goals.
Guilt is something many children of disordered parents struggle with. You might find the following article insightful about the concept of FOG (fear, obligation and guilt):
Fear, Obligation And Guilt: How We Allow Loved Ones To Control UsHere's an excerpt:
...fear, obligation or guilt ("FOG") are the transactional dynamics at play between the controller and the person being controlled. Understanding these dynamics are useful to anyone trying to extricate themselves from the controlling behavior by another person and deal with their own compulsions to do things that are uncomfortable, undesirable, burdensome, or self-sacrificing for others.
Do you feel like this description applies to what's going on between you and your mom?
Take care

The Board Parrot