@Headhurts, thank you so much for sharing this situation with us. I feel privileged to be a part of your experience.
Please, correct me if I’m wrong. From a previous question or answer, I gathered that BPD stands for borderline personality disorder, a serious mental illness.
I have a mental illness, too. Which one is unimportant for this discussion. I was diagnosed 12 years ago, and it shattered my life. I lost everything: my job, many friends, my sense of self worth, etc.
I want to say that it is absolutely not your fault. Would someone blame a person for catching a cold? No. However, mental illness is greatly stigmatized in our world. Do not blame yourself.
Unlike @kess mentioned, I have found medicine to be a great help for me. Finding the right kind of medicine honestly changed my outlook on my life. It renewed my hope for the future. I would not recommend that anyone on this site or any other place on the Internet take the advice of total strangers and not take medicine proven to help. Would we recommend a cancer patient not seek treatment? Of course, we wouldn’t. Yet mental illness seems to be a place where anyone is an expert.
I’m sorry, but @kess is wrong. a little bit of time, as he said, is not going to change the illness.
What helped me was the careful ministrations of doctors, nurses, therapists, case workers, family, and friends. With their help, I found the right medicine to keep my illness in check. I learned the importance of exercise, too, and I meditate some. All this got me to a place where I regained hope.
Through careful steps in my recovery, I began to see the small things I could do to help myself feel better. They were simple things like remembering to take my medicine on time and to get good sleep, etc. I take personal responsibility for much of what happens to me now, but I still rely heavily on others like doctors to assist me.
I educated myself about my illness and shared that information with those closest to me. Some people were receptive, and some were not.
I began to advocate for my own recovery when I was meeting with caregivers. I learned to speak up for me.
I also surrounded myself with a group of loving individuals who knew about my illness and accepted me as I am, an intelligent, caring person with a disease.
My life is radically different today than even one or two years ago. I have hope, and you can, too.
I cannot offer advice on your relationship with your mother. She’s avoiding the situation you are in, and avoidance is the number one coping mechanism for literally all unpleasant circumstances. Hopefully, she will change, but until then, I would limit my contact with her for my own peace of mind.
Finally, let me reiterate having a mental illness is not your fault. It’s not.
I wish you the best of luck and happiness.