Most comic book heroes had their families killed...
or something horrific happen to them in their backstory.
She was told baseball was for boys.
And then became part of a far more advanced society.
Well at least you did pay some attention to her backstory. Carol Danvers was always a hero and her journey was indeed an internal struggle.
On her road to becoming Captain Marvel she witnessed the death of Mar-Vell/Dr. Wendy Lawson at the end of a blaster by Yon-Rogg. Carol Danvers was infused with both the Kree DNA of the now dead Mar-Vell and the energy from the Light-Speed engine and the Tesseract.
It is through her visit to the Supreme Intelligence you learn of her emotional connection to Mar-Vell/Dr. Wendy Lawson.