I agree that it's easy to say "don't" but my instinct was always to shut myself in, feel sorrowful, and plan my demise. I didn't feel that anyone cared about me, knew my wife despised me, and my children were scared of me.
Today, I'm taking a weekend road trip with my kids, and we may even stop at a bar along the way (they're young adults now) where they can have a beer while I drink soda or coffee. Isolation tends to be the furthest thing from my mind nowadays, I know how healing it is to surround myself with others, especially people in recovery.