She ended up dying by an overdose. Before she died due to the drugs and her desire for a regular life she ended up imagining what her life would’ve been like if she managed to start a clean slate that’s why we see her “future” self and child, those are all her imaginations and desires she had before she died.
Ending:
She ended up dying by an overdose. Before she died due to the drugs and her desire for a regular life she ended up imagining what her life would’ve been like if she managed to start a clean slate that’s why we see her “future” self and child, those are all her imaginations and desires she had before she died.