You need to work at staying sober. Every morning when you wake up, you remind yourself "I am an alcoholic and I must not drink today". That is very important, I have friends who still say that to themselves first thing every morning many years after their last drink. Just in case they may forget or get complacent, they remind themselves, "remember, you are an alcoholic, life may be good right now, but you're still an alcoholic".
Then go to a meeting a day. Throw yourself into AA. Listen to the stories. Exercise. Practice gratitude. Write a plan. You need to be proactive every day, not just the days when you are hungover.