Struggling with addiction

I was born 10/20/97 at 10:08pm in New York, NY. Although he and I are back together, a recent breakup with my partner led me to abuse drugs (specifically amphetamines and psychedelics) and alcohol. What had led to our breakup, in the first place, was my substance abuse. He wanted me to stop using and I refused.

I just want to know what in my natal chart has led to this substance addiction. What transit may be causing this.. what I should even pursue as a career. Thank you.
 
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