I quit meth, coke/crack, and alcohol all at the same time about a year and a half ago. If I'd kept drinking there's no way I'd stay clean so they all had to go at once.
So welcome to the secular side. It's great, you kinda have experience in quitting (we're all a bunch of quitters here, after all) and that will certainly help you this time around. Good job, good luck, and good to meet you!