I've come to believe that we come into life sometimes lost & confused once we open our eyes to the world. Memory is usually lost of the in-between world. Therefore, we don't understand the whys and wherefores of karma, which is part of each soul who comes here.
It may be familial karma, or personal. I only thought of it, because it's Saturn. Saturn can feel punishing, but then again, it is a misunderstood transit too, because it helps us overall (as a soul) gain insight into patience (which we may have lacked in a prior lifetime)
Not all prior lifetimes are available to us to peer into and if we are lucky we may even glimpse one or two in our dream states someday.
But that is why our faith (whatever its foundation is), is so important, imo. For a Sagittarius rising, and the connection to your Jupiter exalted in the 9th, faith is so very important even if you don't consciously think about it. Since the 9th is also the house of our conception, it also depicts our mother's state when she conceived you, being lord of that conception.
(my 9th is Pisces therefore Jupiter too), My mom was a Sagittarius, a happy soul by and large, but had a faith which was quite deep without ever going to a church or place of worship as her's took place deep within her. She was strongly attracted to ancient Buddhist sayings for example,and we always had incense burning in the home as well as her lamps depicting multi-arms shiva.
And like you, I was quite fortunate to have inherited a Jupiter trine to the ASC & sextile to my Mars & Sun.
Life was very hard for us as children, but my mother was wonderful to us so I miss her everyday (she passed in 1998)
My sister didn't take away the same passion of love I had for her, and blamed her for our negative karma we inherited as the soul is wise and knows the lessons we need to better our spiritual condition.,
The Nodes are another symbol of karma, and remember, you do have a Node over your 6th and not too long ago experienced a Nodal return.
I do think you are going to come out of this tunnel of darkness soon, - as Jupiter never leaves us abandoned in our time of need when we have a lovely Trine or sextiles to work for us let alone your upcoming Transit from this spiritual planet of magnanimity. And speaking of that long word, here are a few words that depict WHY your oversoul has rewarded you with this lovely placement of the trines and the 9th house exalted Jupiter:
· big-heartedness · great-heartedness
These virtues were gained though other lifetimes perhaps unknown to you as to the details, but the natal chart depicts them.
Hope this helps just a bit until your day in the Sun arrives.