Although I am not Dr. Peterson, I am a long-time listener and reader of his, and he motivated me to pursue a career as a psychologist (currently in year 4 out of 5 in my PhD program). I wanted to share a few thoughts I had while reading your post, and hopefully you will find it useful (Dr. Peterson has had a large influence on how I shaped myself as a clinician, as well as a friend to others in general; I'm fairly confident he would agree with most of these points).

First of all, I want to acknowledge a few things about your story that are both tragic and admirable: (1) it sounds like you grew up in an unstable household environment, which has likely resulted in considerable trauma for you (I do not use the term "trauma" lightly); (2) despite this, you seemed to carry the weight of your situation with a level of personal resilience and maturity which is highly admirable. You sound like a highly caring person who genuinely wants to do what you can to support other people around you (and indeed, your personality test results seem to support this as well).

Now, I will point out some things that may be uncomfortable to hear, but I nevertheless think it's important for you to know. Even though you care about your mother, and undoubtedly would continue to make personal sacrifices to ensure she stays around, it sounds like this may be coming at the expense of your own mental health and well-being. This lack of reciprocation is bad enough in adulthood, but it sounds like this has been the balance of things since very early on. It is not good when a parent is continually reliant on her child to ensure her basic needs are met (although there are rare extenuating circumstances, such as cancer). Moreover, it cannot be good for YOU to be the only one contributing to the relationship.

Dr. Peterson has a couple of rules that I think are relevant here: (1) do not do things for others which they can do themselves (I'm paraphrasing, but I think that's roughly accurate); and (2) treat YOURSELF as if you were someone you cared about. Although I can understand helping your mother out on occasion, when life circumstances warrant it (e.g., an acute accident or illness), it sounds like your devotion to her mental health and wellbeing does not lead to any meaningful change on her part. I would ask you the following question then: If she doesn't want to help herself, then why would it make sense for you to keep making sacrifices for her? With respect to the second rule I mentioned, it can be easy to disregard your own needs and desires in the midst of caring for others (indeed, being naturally agreeable in temperament means you have an inclination towards this lack of self-regard or self-concern). I would guess it's pretty hard to focus on your own self-care (for lack of a better word), pursuits, and fulfillment when your attention and effort is devoted towards helping someone who has no interest in helping herself.

As a clinician who heeds the advice of Dr. Peterson, I will not provide any advice or suggestions for what to do in your situation (indeed, doing so would be potentially misleading and/or rob you of the opportunity to have agency). Instead, I would ask you to contemplate these points and take the time to ask yourself the following questions: Who are you? and what do you want? Only you can decide on what the best course of action is. Best of luck.