Since I can't even get to 1017 errors (awaiting delivery of physical copy), I keep my "gaming" time busy by reading sites like eorzeareborn, ffxivguild, and xivdb - to plan out what I'll do when I can get back into the game. You can browse hunting logs, think about which cross-skills you want to use for what builds, brush up on stat priorities..

Or just walk away from the computer when you realize you're doing work in anticipation of fun. Close the launcher entirely and do something completely unrelated to FFXIV. It's definitely frustrating.