Hi Rockets
I've seen you around
I just out and out told mine.
They probably didn't need to know - I was 40 and not living at home, but it made sense to me to get it off my chest, not only so I could start fresh, but so I could get some help and support as well.
I know you're a lot younger than I was and I suspect you might still live at home, so I can understand you might have several reasons for wanting your parents to know.
If you need help, and you think telling them will help you get some help - do it.
All the other stuff can be sorted out later.
Have you thought of any face to face support yet - NA, counselling, IOP?
Everything we can use to beat this is a good thing, Rockets.
D