Sitting on the couch with my laptop and drinking in the evenings was me to a tee. When I quit drinking I changed my evening routine and I avoided sitting on my couch for about three months in the evenings! I switched to sitting in my study or lying in bed. It sounds silly but it was necessary. My own couch became a no go zone. I can now sit on it comfortably with a cup of tea but it took time!
Running in a body that has had some sober time is to rediscover the joy of running. (Someone gave me a whole new body to run in ... wait, that someone was me!
) It has become my substitute activity when I need a pick me up, and honestly it's a better feeling than I got from drinking. Since you're a runner I urge you to find out for yourself!