I believe the focus should not be on her “troubled life and addictions” but on what we can learn from her life, about her extreme emotions and how she experienced and creatively translated the depth of polarity between sexes. What do you see in her birth- and death-chart (from darkstarastrology.com)?
Amy had many planets in Sagittarius (Moon, Jupiter, Uranus, Neptune) which made great aspects (trines) to her Leo planets of Venus and Mars. So much iconoclastic energy (Sagittarius) giving a positive outlet to her energies (Mars) and her affections (Venus). She was loved by her public and channeled much of her energies into being a very successful songstress and composer.
So what happened? Without her birth time it is hard to see what energies were playing out in what astrological houses in her chart. But here are some thoughts based on aspects. She had many aspects iner horoscope indicating a volitile and energetic personality. Here are some:
Mars conjunct Venus – actions for love produce a firecraker effect.
Sun conjunct Mercury – mission in life can be communicated forcefully and effectively.
Pluto conjunct Saturn – Problems (Saturn) can cause dramatic transformative changes (Pluto). ALso, learning from your mistakes can turn your life around and bring monumental changes.
Jupiter conjunct Uranus – Large scale luck and expansion (Jupier) comes hand in hand with explosive almost uncontrollable change (Uranus).