Seems few things in life are just one thing and not combinations. But Yup the root cause is Genes. As in gene pool. Its a disease, sista☺
As far a triggers I’ve never relapsed and when i drank i drank and drugged solid for 22 years with no breaks.
I wasnt molested, i was loved by my parents unconditionally, i have great supportive friends, i was a successful athlete and while i struggled academically, life was a pretty good as in good time charlie.
But it all started at 18 when a mixed drink felt so good at making me not feel socially awkward….and coupled with my positive gene for substance abuse, i guess there you have my trigger…social anxiety