Three years. You really need to be your own person to handle it, given how alcohol hasn't just permeated the fabric of society, but is the fabric in many situations. For me being available to perform at the top of my game 24/7 is something I enjoy very much e.g. getting a call to do a mercy flight at a moments notice from the island I live on, at night in IMC, knowing it's no problem because I'm sharp - now that's a great feeling.
I think if you're going to go sober, doing something like volunteer fire or another field that lets you feel good about being available 24/7 when others might not be, really helps keep you motivated and appreciate the new state of being. Also just pushing yourself mentally or physically - e.g. training for a marathon or ironman - it lets you actually reap the rewards rather than feel like you've lost something.
I think if you're going to go sober, doing something like volunteer fire or another field that lets you feel good about being available 24/7 when others might not be, really helps keep you motivated and appreciate the new state of being. Also just pushing yourself mentally or physically - e.g. training for a marathon or ironman - it lets you actually reap the rewards rather than feel like you've lost something.