Definitely hold on to all the support you can get, we can very easily burn bridges!!
Though probably best to figure out the reaction towards his parents getting involved, I usually always got really defensive when deep down I didn't like what I was hearing and still held a flame for alcohol.
As has already been mentioned, a solid plan moving forward is needed, but I think you already know that given the title of this thread!
You can do this Alphabet, you can make it happen!!