Glad to hear you are taking actions to hold your son accountable for his actions. What he is doing is illegal in most countries and hopefully the police are involved as well.
Regarding the drinking, no apologies are necessary but perhaps you could focus some attention on taking care of yourself now that you've taken action to deal with the issue of your son? The fact that you found the advice you received here comforting yet still chose to keep drinking tells me there's some disconnect between your thoughts and actions. What about making a list of things you could do for yourself today that will help you? You have a captive audience her that would be more than happy to go over the list with you and offer suggestions.